Elementary Geometry For College Students, 7e
7th Edition
ISBN: 9781337614085
Author: Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher: Cengage,
expand_more
expand_more
format_list_bulleted
Question
Chapter 6.3, Problem 16E
To determine
To find:
To find DE and EC.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
◆ Switch To Light Mode
HOMEWORK: 18, 19, 24, 27, 29
***Please refer to the HOMEWORK sheet from Thursday, 9/14, for
the problems
****Please text or email me if you have any questions
18. Figure 5-35 is a map of downtown Royalton, showing
the Royalton River running through the downtown
area and the three islands (A, B, and C) connected to
each other and both banks by eight bridges. The Down-
town Athletic Club wants to design the route for a
marathon through the downtown area. Draw a graph
that models the layout of Royalton.
FIGURE 5-35
North Royalton
Royalton River
South Royption
19. A night watchman must walk the streets of the Green
Hills subdivision shown in Fig. 5-36. The night watch-
man needs to walk only once along each block. Draw a
graph that models this situation.
Solve this question and check if my answer provided is correct
Proof: LN⎯⎯⎯⎯⎯LN¯ divides quadrilateral KLMN into two triangles. The sum of the angle measures in each triangle is ˚, so the sum of the angle measures for both triangles is ˚. So, m∠K+m∠L+m∠M+m∠N=m∠K+m∠L+m∠M+m∠N=˚. Because ∠K≅∠M∠K≅∠M and ∠N≅∠L, m∠K=m∠M∠N≅∠L, m∠K=m∠M and m∠N=m∠Lm∠N=m∠L by the definition of congruence. By the Substitution Property of Equality, m∠K+m∠L+m∠K+m∠L=m∠K+m∠L+m∠K+m∠L=°,°, so (m∠K)+ m∠K+ (m∠L)= m∠L= ˚. Dividing each side by gives m∠K+m∠L=m∠K+m∠L= °.°. The consecutive angles are supplementary, so KN⎯⎯⎯⎯⎯⎯∥LM⎯⎯⎯⎯⎯⎯KN¯∥LM¯ by the Converse of the Consecutive Interior Angles Theorem. Likewise, (m∠K)+m∠K+ (m∠N)=m∠N= ˚, or m∠K+m∠N=m∠K+m∠N= ˚. So these consecutive angles are supplementary and KL⎯⎯⎯⎯⎯∥NM⎯⎯⎯⎯⎯⎯KL¯∥NM¯ by the Converse of the Consecutive Interior Angles Theorem. Opposite sides are parallel, so quadrilateral KLMN is a parallelogram.
Chapter 6 Solutions
Elementary Geometry For College Students, 7e
Ch. 6.1 - For Exercises 1 to 8, use the figure provided....Ch. 6.1 - For Exercises 1 to 8, use the figure provided....Ch. 6.1 - For Exercises 1 to 8, use the figure provided....Ch. 6.1 - For Exercises 1 to 8, use the figure provided....Ch. 6.1 - For Exercises 1 to 8, use the figure provided....Ch. 6.1 - For Exercises 1 to 8, use the figure provided....Ch. 6.1 - For Exercises 1 to 8, use the figure provided....Ch. 6.1 - For Exercises 1 to 8, use the figure provided....Ch. 6.1 - Given: AOOBandOCbisectsACBinO Find: a mAB b mACB c...Ch. 6.1 - Given: ST=12(SR)inQSRisadiameter Find: a mST b mTR...
Ch. 6.1 - Given: QinwhichmAB:mBC:mCA=2:3:4 Find: a mAB b mBC...Ch. 6.1 - Given: mDOE=76and mEOG=82inO EFisadiameter Find: a...Ch. 6.1 - Given: OwithABACand mBOC=72 Find: a mBC b mAB c mA...Ch. 6.1 - In O not shown, OA is a radius, AB is a diameter,...Ch. 6.1 - Given: In O,OCABand OC=6 Find: a AB b BC Exercise...Ch. 6.1 - Prob. 16ECh. 6.1 - Given: Concentric circles with center Q...Ch. 6.1 - AB is the common chord of O and Q. If AB=12 and...Ch. 6.1 - Circles O and Q have the common chord AB. If AB=6,...Ch. 6.1 - Suppose that a circle is divided into three...Ch. 6.1 - Suppose that a circle is divided by points A,B,C,...Ch. 6.1 - Prob. 22ECh. 6.1 - Prob. 23ECh. 6.1 - Prob. 24ECh. 6.1 - Prob. 25ECh. 6.1 - Five points are equally spaced on a circle. A...Ch. 6.1 - A ceiling fan has equally spaced blades. What is...Ch. 6.1 - A wheel has equally spaced lug bolts. What is the...Ch. 6.1 - An amusement park ride the Octopus has eight...Ch. 6.1 - In Exercises 30 and 31, complete each proof....Ch. 6.1 - Prob. 31ECh. 6.1 - In Exercises 32 to 37, write a paragraph proof....Ch. 6.1 - Prob. 33ECh. 6.1 - Prob. 34ECh. 6.1 - Prob. 35ECh. 6.1 - Prob. 36ECh. 6.1 - In Exercises 32 to 37, write a paragraph proof. If...Ch. 6.1 - If MNPQin O, explain why MNPQ is an isosceles...Ch. 6.1 - If STTV, explain why STV is an isosceles triangle.Ch. 6.1 - Prob. 40ECh. 6.1 - In O,OY=5 and XZ=6. If XWWY, find WZ.Ch. 6.2 - Given: mAB=92mDA=114mBC=138 Find:...Ch. 6.2 - Given: mDC=30 and mDABC is trisected at points A...Ch. 6.2 - Given: Circle O with diameter RS, tangent SW,...Ch. 6.2 - Prob. 4ECh. 6.2 - Prob. 5ECh. 6.2 - Is it possible for a a rectangle inscribed in a...Ch. 6.2 - Given: In Q, PR contains Q, MR is a tangent,...Ch. 6.2 - Given: AB and AC are tangent to O, mBC=126 Find:...Ch. 6.2 - Given: Tangent ABand AC to O mACB=68 Find:...Ch. 6.2 - Given: m1=72,mDC=34 Find: a)mABb)m2Ch. 6.2 - Given: m2=36mAB=4mDC Find: a)mABb)m1Ch. 6.2 - Given: m3=42 Find: a)mRTb)mRST Exercises 12,13Ch. 6.2 - Given: RSSTRT Find: a)mRTb)mRSTc)m3 Exercises...Ch. 6.2 - Given: m1=63mRS=3x+6mVT=x Find: mRS Exercises 14,...Ch. 6.2 - Given: m2=124mTV=x+1mSR=3(x+1) Find: mTV Exercises...Ch. 6.2 - Given: m1=71m2=33 Find: mCE and mBD Exercises 16,...Ch. 6.2 - Given: m1=62m2=26 Find: mCE and mBD Exercises 16,...Ch. 6.2 - aHow are R and T related? bFind mR if mT=112....Ch. 6.2 - Prob. 19ECh. 6.2 - A quadrilateral RSTV is circumscribed about a...Ch. 6.2 - In Exercises 21 and 22, complete each proof....Ch. 6.2 - In Exercises 21 and 22, complete each proof....Ch. 6.2 - Prob. 23ECh. 6.2 - Prob. 24ECh. 6.2 - Prob. 25ECh. 6.2 - Prob. 26ECh. 6.2 - An airplane reaches an altitude of 3mi above the...Ch. 6.2 - From the veranda of a beachfront hotel, Manny is...Ch. 6.2 - For the five-pointed star a regular pentagram...Ch. 6.2 - For the six-pointed star a regular hexagram...Ch. 6.2 - A satellite dish in the shape of a regular...Ch. 6.2 - In the figure shown, RSTWVT by the reason AA. Name...Ch. 6.2 - In the figure shown, RXVWXS by the reason AA. Name...Ch. 6.2 - On a fitting for a hex wrench, the distance from...Ch. 6.2 - Given: AB is a diameter of M is the midpoint of...Ch. 6.2 - A surveyor sees a circular planetarium through an...Ch. 6.2 - The larger circle is inscribed in a square with...Ch. 6.2 - In R,QS=2(PT). Also, mP=23. Find mVRS.Ch. 6.2 - Prob. 39ECh. 6.2 - Prob. 40ECh. 6.2 - Prob. 41ECh. 6.2 - In Exercises 39 to 47, provide a paragraph proof....Ch. 6.2 - Prob. 43ECh. 6.2 - Prob. 44ECh. 6.2 - Prob. 45ECh. 6.2 - Prob. 46ECh. 6.2 - Prob. 47ECh. 6.2 - Given concentric circles with center O, ABC is...Ch. 6.2 - Prob. 49ECh. 6.3 - Note: Exercises preceded by an asterisk are of a...Ch. 6.3 - Note: Exercises preceded by an asterisk are of a...Ch. 6.3 - Note: Exercises preceded by an asterisk are of a...Ch. 6.3 - Note: Exercises preceded by an asterisk are of a...Ch. 6.3 - Sketch two circles that have: a No common tangents...Ch. 6.3 - Two congruent intersecting circles B and D not...Ch. 6.3 - Prob. 7ECh. 6.3 - Prob. 8ECh. 6.3 - Prob. 9ECh. 6.3 - Prob. 10ECh. 6.3 - Prob. 11ECh. 6.3 - Prob. 12ECh. 6.3 - Prob. 13ECh. 6.3 - Prob. 14ECh. 6.3 - Prob. 15ECh. 6.3 - Prob. 16ECh. 6.3 - For Exercises 17 to 20. See Theorem 6.3.6. Given:...Ch. 6.3 - For Exercises 17 to 2, See Theorem 6.3.6. Given:...Ch. 6.3 - Prob. 19ECh. 6.3 - For Exercises 17 to 2, See Theorem 6.3.6. Given:...Ch. 6.3 - Prob. 21ECh. 6.3 - In the figure for Exercises 21 to 24,RS is tangent...Ch. 6.3 - In the figure for Exercises 21 to 24,RS is tangent...Ch. 6.3 - Prob. 24ECh. 6.3 - For the two circles in figures a, b, and c, find...Ch. 6.3 - For the two circles in figures a, b, and c, find...Ch. 6.3 - In Exercises 27 to 30, provide a paragraph proof....Ch. 6.3 - Prob. 28ECh. 6.3 - In Exercises 27 to 30, provide a paragraph proof....Ch. 6.3 - Prob. 30ECh. 6.3 - Does it follow from Exercise 30 that ADE is also...Ch. 6.3 - Prob. 32ECh. 6.3 - The cylindrical brush on a vacuum cleaner is...Ch. 6.3 - Prob. 34ECh. 6.3 - Given: Tangents AB,BC,andACtoO at points M, N, and...Ch. 6.3 - Given: Q is inscribed in isosceles right RST. The...Ch. 6.3 - Given: AB is an external tangent to O and Q at...Ch. 6.3 - Prob. 38ECh. 6.3 - The center of a circle of radius 2 in. is at a...Ch. 6.3 - Circles O, P, and Q are tangent as shown at points...Ch. 6.3 - Prob. 41ECh. 6.3 - Prob. 42ECh. 6.3 - Prob. 43ECh. 6.3 - If the larger gear has 30 teeth and smaller gear...Ch. 6.3 - Prob. 45ECh. 6.3 - In Exercises 46 to 49, prove the stated theorem....Ch. 6.3 - Prob. 47ECh. 6.3 - Prob. 48ECh. 6.3 - Prob. 49ECh. 6.3 - Prob. 50ECh. 6.4 - In Exercises 1 to 8, use the figure provided. If...Ch. 6.4 - Prob. 2ECh. 6.4 - Prob. 3ECh. 6.4 - Prob. 4ECh. 6.4 - Prob. 5ECh. 6.4 - In Exercises 1 to 8, use the figure provided. If...Ch. 6.4 - In Exercises 1 to 8, use the figure provided. If...Ch. 6.4 - Prob. 8ECh. 6.4 - Prob. 9ECh. 6.4 - Prob. 10ECh. 6.4 - X, Y, and Z are on circle O such that mXY=120,...Ch. 6.4 - Prob. 12ECh. 6.4 - Construct the two tangent segments to circle P not...Ch. 6.4 - Construct the two tangent segments to circle R not...Ch. 6.4 - Point V is in the exterior of circle Q not shown...Ch. 6.4 - Prob. 16ECh. 6.4 - Prob. 17ECh. 6.4 - Prob. 18ECh. 6.4 - Prob. 19ECh. 6.4 - a If mRSmTV, write an inequality that compares m1...Ch. 6.4 - a If MNPQ, write an inequality that compares the...Ch. 6.4 - Prob. 22ECh. 6.4 - Quadrilateral ABCD is inscribed in circle P not...Ch. 6.4 - Quadrilateral RSTV is inscribed in circle Q not...Ch. 6.4 - In circle O, points A, B, and C are on the circle...Ch. 6.4 - Prob. 26ECh. 6.4 - Prob. 27ECh. 6.4 - Triangle ABC is inscribed in circle O; AB=5, BC=6,...Ch. 6.4 - Given circle O with mBC=120, and mAC=130. a Which...Ch. 6.4 - Given that mAC:mBC:mAB=4:3:2 in circle O: a Which...Ch. 6.4 - Prob. 31ECh. 6.4 - Circle O has a diameter of length 20cm. Chord AB...Ch. 6.4 - Prob. 33ECh. 6.4 - A tangent ET is constructed to circle Q from...Ch. 6.4 - Prob. 35ECh. 6.4 - Prob. 36ECh. 6.4 - Prob. 37ECh. 6.4 - Prove: In a circle containing two unequal chords,...Ch. 6.4 - In O, chord AB chord CD. Radius OE is...Ch. 6.4 - In P, whose radius has length 8in., mAB=mBC=60....Ch. 6.4 - Prob. 41ECh. 6.CR - The length of the radius of a circle is 15 mm. The...Ch. 6.CR - Find the length of a chord that is 8 cm from the...Ch. 6.CR - Two circles intersect and have a common chord 10...Ch. 6.CR - Two circles intersect and have a common chord 12...Ch. 6.CR - In Review Exercises 5 to 10, BA is tangent to the...Ch. 6.CR - Prob. 6CRCh. 6.CR - In Review Exercises 5 to 10, BA is tangent to the...Ch. 6.CR - In Review Exercises 5 to 10, BA is tangent to the...Ch. 6.CR - Prob. 9CRCh. 6.CR - Prob. 10CRCh. 6.CR - Given:Owithtangentlandm1=46 Find:m2, m3,m4,m5Ch. 6.CR - Given:Owithtangentlandm5=40 Find:m1,m2, m3,m4,Ch. 6.CR - Two circles are concentric. A chord of the larger...Ch. 6.CR - Two parallel chords of a circle each have length...Ch. 6.CR - In Review Exercises 15 to 22, state whether the...Ch. 6.CR - In Review Exercises 15 to 22, state whether the...Ch. 6.CR - In Review Exercises 15 to 22, state whether the...Ch. 6.CR - In Review Exercises 15 to 22, state whether the...Ch. 6.CR - In Review Exercises 15 to 22, state whether the...Ch. 6.CR - Prob. 20CRCh. 6.CR - In Review Exercises 15 to 22, state whether the...Ch. 6.CR - In Review Exercises 15 to 22, state whether the...Ch. 6.CR - Given that CF is a tangent to the circle shown:...Ch. 6.CR - Given that CF is a tangent to the circle shown:...Ch. 6.CR - Given:DF-AC-inO OE=5x+4 OB=2x+19 Find:OECh. 6.CR - Given:OE-OB-inO DF=xx-2 AC=x+28 Find:DEandACCh. 6.CR - In Review Exercises 27 to 29, give a proof for...Ch. 6.CR - In Review Exercises 27 to 29, give a proof for...Ch. 6.CR - In Review Exercises 27 to 29, give a proof for...Ch. 6.CR - Given:OwithdiameterAC-andtangentDE...Ch. 6.CR - A square is inscribed in a circle with a radius of...Ch. 6.CR - A 30-60-90 triangle is inscribed in a circle with...Ch. 6.CR - A circle is inscribed in the right triangle. The...Ch. 6.CR - Given:OisinscribedinABC AB=9,BC=13,AC=10...Ch. 6.CR - In Q with ABQ and CDQ, mABmCD. Also, QPABandQRCD....Ch. 6.CT - a If mAB=88, then mACB=____________. b If mAB=92...Ch. 6.CT - a If mBC=69, then mBOC=_____________. b If mBC=64,...Ch. 6.CT - a If mBAC=24, then mBC=_____________. b If ABAC,...Ch. 6.CT - Complete each theorem: a An angle inscribed in a...Ch. 6.CT - Given that mAB=106 and mDC=32, find: a m1 b m2Ch. 6.CT - Given the tangents with mRT=146, find : a mRST b...Ch. 6.CT - Given the tangents with m3=46, find: a mRST b mRTCh. 6.CT - aBecause point Q is their common center, these...Ch. 6.CT - In O with diameter AC, OC=5 and AB=6. If M is the...Ch. 6.CT - For the circles described and shown, how many...Ch. 6.CT - aIf HP=4, PJ=5, and PM=2, find LP. bIf HP=x+1,...Ch. 6.CT - In the figure, TV is a tangent and TVWTXV. Find TV...Ch. 6.CT - Construct the tangent line to P at point X.Ch. 6.CT - aIf mABmCD, write an inequality that compares...Ch. 6.CT - In P not shown, the length of radius PA is 5....Ch. 6.CT - Provide the missing statements and reasons in the...
Knowledge Booster
Similar questions
- Quadrilateral BCDE is similar to quadrilateral FGHI. Find the measure of side FG. Round your answer to the nearest tenth if necessary. BCDEFGHI2737.55arrow_forwardAn angle measures 70.6° more than the measure of its supplementary angle. What is the measure of each angle?arrow_forwardName: Date: Per: Unit 7: Geometry Homework 4: Parallel Lines & Transversals **This is a 2-page document! ** Directions: Classify each angle pair and indicate whether they are congruent or supplementary. 1 1.23 and 25 2. 24 and 28 3. 22 and 25 4. 22 and 28 5. 21 and 27 6. 22 and 26 Directions: Find each angle measure. 7. Given: wvm25-149 m21- 8. Given: mn: m1=74 mz2- m22- m.23- m23- mz4= V mz4= m25= m26- m26= m27- m27 m28- m48= 9. Given: a || b: m28 125 m2- 10. Given: xy: m22-22 m21- = mz2- m43- m3- mZA m24-> m. 5- m25- m26- m.26=> m2]=> m27= m28- 11. Given: rm2-29: m15-65 m2=> m29-> m3- m. 10- mc4= m25= m212- m.46- m213- mat- m214- m28- & Gina when (N) Things ALICE 2017arrow_forward
- Match each statement to the set of shapes that best describes them. 1. Similar triangles by SSS 2. Similar triangles by SAS 3. Similar triangles by AA 4. The triangles are not similar > U E 35° 89° S F 89° J 35° 94° G 52° 90° E K 52° Iarrow_forwardMatch each transformation series with the diagram that applies to it. 1. (x, y) (x-10, y + 7) scale factor: 2 2. (x, y)(x-8, y+6) scale factor: 4 3. (x, y)(x+1, y - 5) scale factor: 5 D' 104º 6 2 -10 8 -6 F2 4 5 D 2 E -4 -6 100 E 8 10 Farrow_forwardWhich sets of figures below are similar? Select all that apply. 48 yd 48 yd G 48 yd 26 mm 40 m 23 km 25 m 22 mm 37 mm 25 mi 42 yd 48 yd 48 yd 48 yd U 42 yd 25 mm M T 40 mi 20 mm 25 mm 30 mi 48 m K 37 mm 20 mm 48 m S 30 mi 73 km 29 km 29 kmarrow_forward
- GHUK PTSRQ. What is mz J? H Q I 77° 102° G 77° K J R 135° P T 123° Sarrow_forwardSolve it correctly and in Frencharrow_forwardA rug company weaves rugs that are made by repeating the design in Figure 12.49. Lengths of portions of the design are indicated in the figure. The yarn for the shaded portion of the design costs $5 per square unit, and the yarn for the unshaded portion of the design costs $3 per square unit. How much will the yarn for a 60-unit-by-84-unit rug cost? Explain your reasoning.arrow_forward
- 11:18 91 chisholminstitute.bksblive2.com.au 1.5 ACSF L5 SC Geometry and Measure: Pythagorus' Theorum Pythagorean Problems Calculate the lengths of all of this triangle's sides. x = 64 cm² y A ↑ ४ 225 cm² + ? Image not drawn accurately. 45 45arrow_forwardWhat is WX explain your reasoningarrow_forwardthink about what you know about measurements. fill in each box. use words, numbers, and pictures. Show as many ideas as you can.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Elementary Geometry For College Students, 7eGeometryISBN:9781337614085Author:Alexander, Daniel C.; Koeberlein, Geralyn M.Publisher:Cengage,
Elementary Geometry for College StudentsGeometryISBN:9781285195698Author:Daniel C. Alexander, Geralyn M. KoeberleinPublisher:Cengage Learning 
Mathematics For Machine TechnologyAdvanced MathISBN:9781337798310Author:Peterson, John.Publisher:Cengage Learning,
Holt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGAL
Trigonometry (MindTap Course List)TrigonometryISBN:9781305652224Author:Charles P. McKeague, Mark D. TurnerPublisher:Cengage Learning
Elementary Geometry For College Students, 7e
Geometry
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Cengage,
Elementary Geometry for College Students
Geometry
ISBN:9781285195698
Author:Daniel C. Alexander, Geralyn M. Koeberlein
Publisher:Cengage Learning
Mathematics For Machine Technology
Advanced Math
ISBN:9781337798310
Author:Peterson, John.
Publisher:Cengage Learning,
Holt Mcdougal Larson Pre-algebra: Student Edition...
Algebra
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Trigonometry (MindTap Course List)
Trigonometry
ISBN:9781305652224
Author:Charles P. McKeague, Mark D. Turner
Publisher:Cengage Learning