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In Exercises
Given:
Prove:
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Elementary Geometry For College Students, 7e
- Prove by the indirect method: Given: Scalene XYZ in which ZW bisects XZY point W lies on XY. Prove: ZW is not perpendicular to XYarrow_forwardIn Exercises 27 to 30, fill in the missing reasons for each geometric proof. Given: E is the midpoint of DF Prove: DE=12(DF) Exercises 27, 28 PROOF Statements Reasons 1. E is the midpoint of DF 1. ? 2. DE=EF 2. ? 3. DE+EF=DF 3. ? 4. DE+DE=DF 4. ? 5. 2(DE)=DF 5. ? 6. DE=12(DF) 6. ?arrow_forwardDoes it follow from Exercise 30 that ADE is also congruent to CBE? What can you conclude regarding AE and CE in the drawing? What can you conclude regarding DEandBE?arrow_forward
- Given: B is the midpoint of AC BDAC Prove: ADC is isoscelesarrow_forwardIn ABC, M is the midpoint of AB and N is the midpoint of AC. If MN= 3x-11 and BC= 4x24, find the value of x._arrow_forwardIn Exercises 9 and 10, classify the triangle not shown by considering the measures of its angles. a In XYZ, mX=123. b In RST, mR=45, mS=65 and mT=70.arrow_forward
- Review Exercises In Review Exercises 22 to 24, M and N are the midpoints of FJ- and FH- respectively. Given: JH=12 mJ=80 mF=60 Prove: MN,mFMN,mFNMarrow_forwardState whether the sentences in Review Exercises 33 to 37 are always true A, sometimes true S, or never true N. The bisectors of vertical angles are opposite rays.arrow_forwardIn Exercises 11 to14 , assume that X, Y , and Z are midpoints of the sides of RST. If RS=12, ST=14, and RT=16, find: a XY b XZ c YZarrow_forward
- In Exercises 11 to 14, find the distance between the two points P1 and P2. P1=0,0,0 and P2=1,2,4arrow_forwardIn Exercise 19 to24, complete each proof. Given: WXYZ with diagonals WY and XZ WMXYMZ Prove:arrow_forwardLet A, B, and C lie on a straight line as shown near Exercise 8. Classify these claims as true or false. a B lies between A and C. b AB is a ray with endpoint B.arrow_forward
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