Elementary Geometry for College Students
6th Edition
ISBN: 9781285195698
Author: Daniel C. Alexander, Geralyn M. Koeberlein
Publisher: Cengage Learning
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Textbook Question
Chapter A.2, Problem 1E
In Exercises 1 to 6, simplify by combining similar terms.
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find the value of each variable
Name:
Date:
Bell:
Unit 11: Volume & Surface Area
Homework 2: Area of Sectors
Directions: Find the area of each shaded sector. Round to the hundredths place.
1. GH 11 in
2. KL
20 ft
H
F
64
G
L
119
M
K
3. BA 6.5 cm
4. YZ 14.2 m
B
23
X
87°
Y
Z
5. KL = 27.1 mm
J
32
L
X:360-32.1
K
A-3
360
7. BD 18 cm
E
136
B
X=32.8
127.0
(271)
A: 069.13 Amm²
19=2102.13
A-136
360.16912
A:300cm²
A=96.13
6. PQ = 2.8 in
P
R
311°
8. WZ 5.3 km
V
=
Z 108
W
D
9. HK = 25 ft
G
H
KO
26
X
10. SR 26 m
=
S
73
T
R
Gina Wilson (All Things Algeb
538 Chapter 13
12. Given: Points E(-4, 1), F(2, 3), G(4, 9), and H(-2, 7)
a. Show that EFGH is a rhombus.
b. Use slopes to verify that the diagonals are
perpendicular.
13. Given: Points R(-4, 5), S(-1, 9), T(7, 3) and U(4, -1)
a. Show that RSTU is a rectangle.
b. Use the distance formula to verify that the diagonals are congruent.
14. Given: Points N(-1, -5), O(0, 0), P(3, 2), and 2(8, 1)
a. Show that NOPQ is an isosceles trapezoid.
b. Show that the diagonals are congruent.
Decide what special type of quadrilateral HIJK is. Then prove that your
answer is correct.
15. H(0, 0)
16. H(0, 1)
17. H(7, 5)
18. H(-3, -3)
I(5, 0)
I(2,-3)
1(8, 3)
I(-5, -6)
J(7, 9)
K(1, 9)
J(-2, -1)
K(-4, 3)
J(0, -1)
K(-1, 1)
J(4, -5)
K(6,-2)
19. Point N(3, - 4) lies on the circle x² +
y² = 25. What is the slope of the
(Hint: Recall Theorem 9-1.)
-
line that is tangent to the circle at N?
20. Point P(6, 7) lies on the circle (x + 2)² + (y − 1)² = 100. What is the
slope of the line that is tangent to the circle at…
Chapter A Solutions
Elementary Geometry for College Students
Ch. A.1 - Name the four parts of a mathematical system....Ch. A.1 - Prob. 2ECh. A.1 - Which axiom of equality is illustrated in each of...Ch. A.1 - Prob. 4ECh. A.1 - Prob. 5ECh. A.1 - Prob. 6ECh. A.1 - Prob. 7ECh. A.1 - Prob. 8ECh. A.1 - Prob. 9ECh. A.1 - Prob. 10E
Ch. A.1 - Prob. 11ECh. A.1 - Prob. 12ECh. A.1 - Prob. 13ECh. A.1 - Nine pegs are evenly spaced on a board so that the...Ch. A.1 - The four owners of a shop realize a loss of 240 in...Ch. A.1 - Bill works at a weekend convention by selling...Ch. A.1 - Use the Distributive Axiom to simplify each...Ch. A.1 - Use the Distributive Axiom to simplify each...Ch. A.1 - Simplify each expression: a 6+4 c 16x2y9x2y b...Ch. A.1 - Prob. 20ECh. A.1 - Prob. 21ECh. A.1 - Prob. 22ECh. A.1 - Prob. 23ECh. A.1 - Prob. 24ECh. A.1 - Prob. 25ECh. A.1 - Prob. 26ECh. A.1 - Prob. 27ECh. A.1 - Prob. 28ECh. A.1 - Prob. 29ECh. A.1 - Prob. 30ECh. A.1 - Prob. 31ECh. A.1 - Prob. 32ECh. A.2 - In Exercises 1 to 6, simplify by combining similar...Ch. A.2 - Prob. 2ECh. A.2 - Prob. 3ECh. A.2 - Prob. 4ECh. A.2 - Prob. 5ECh. A.2 - Prob. 6ECh. A.2 - Prob. 7ECh. A.2 - Prob. 8ECh. A.2 - Prob. 9ECh. A.2 - Prob. 10ECh. A.2 - Prob. 11ECh. A.2 - Prob. 12ECh. A.2 - Prob. 13ECh. A.2 - Prob. 14ECh. A.2 - Prob. 15ECh. A.2 - Prob. 16ECh. A.2 - Prob. 17ECh. A.2 - Prob. 18ECh. A.2 - Prob. 19ECh. A.2 - Prob. 20ECh. A.2 - Prob. 21ECh. A.2 - Prob. 22ECh. A.2 - Prob. 23ECh. A.2 - Prob. 24ECh. A.2 - Prob. 25ECh. A.2 - Prob. 26ECh. A.2 - Prob. 27ECh. A.2 - Prob. 28ECh. A.2 - Prob. 29ECh. A.2 - Prob. 30ECh. A.2 - Prob. 31ECh. A.2 - Prob. 32ECh. A.2 - Prob. 33ECh. A.2 - Prob. 34ECh. A.2 - Prob. 35ECh. A.2 - Prob. 36ECh. A.3 - If line segment AB and line segment CD in the...Ch. A.3 - Prob. 2ECh. A.3 - Prob. 3ECh. A.3 - Prob. 4ECh. A.3 - Prob. 5ECh. A.3 - Prob. 6ECh. A.3 - Prob. 7ECh. A.3 - Prob. 8ECh. A.3 - Prob. 9ECh. A.3 - Of several angles, the degree measures are related...Ch. A.3 - Prob. 11ECh. A.3 - Prob. 12ECh. A.3 - Prob. 13ECh. A.3 - Prob. 14ECh. A.3 - Prob. 15ECh. A.3 - Prob. 16ECh. A.3 - Prob. 17ECh. A.3 - Prob. 18ECh. A.3 - Prob. 19ECh. A.3 - Prob. 20ECh. A.3 - Prob. 21ECh. A.3 - Prob. 22ECh. A.3 - Prob. 23ECh. A.3 - Prob. 24ECh. A.3 - Prob. 25ECh. A.3 - Prob. 26ECh. A.3 - Prob. 27ECh. A.3 - Prob. 28ECh. A.3 - Prob. 29ECh. A.3 - Prob. 30ECh. A.3 - Prob. 31ECh. A.3 - Prob. 32ECh. A.4 - Prob. 1ECh. A.4 - Note: Exercises preceded by an asterisk are of a...Ch. A.4 - Prob. 3ECh. A.4 - Prob. 4ECh. A.4 - Prob. 5ECh. A.4 - Prob. 6ECh. A.4 - In Exercises 5 to 8, factor each difference of two...Ch. A.4 - In Exercises 5 to 8, factor each difference of two...Ch. A.4 - Prob. 9ECh. A.4 - Prob. 10ECh. A.4 - In Exercises 9 to 16, factor each trinomial...Ch. A.4 - Prob. 12ECh. A.4 - Prob. 13ECh. A.4 - Prob. 14ECh. A.4 - Prob. 15ECh. A.4 - Prob. 16ECh. A.4 - Prob. 17ECh. A.4 - Prob. 18ECh. A.4 - Prob. 19ECh. A.4 - Prob. 20ECh. A.4 - Prob. 21ECh. A.4 - Prob. 22ECh. A.4 - Prob. 23ECh. A.4 - Prob. 24ECh. A.4 - Prob. 25ECh. A.4 - Prob. 26ECh. A.4 - Prob. 27ECh. A.4 - Prob. 28ECh. A.4 - In Exercises 25 to 32, solve each quadratic...Ch. A.4 - In Exercises 25 to 32, solve each quadratic...Ch. A.4 - Prob. 31ECh. A.4 - Prob. 32ECh. A.4 - Prob. 33ECh. A.4 - Prob. 34ECh. A.4 - Prob. 35ECh. A.4 - Prob. 36ECh. A.4 - Given that the area of the rectangle shown is 66,...Ch. A.4 - Determine the length x by solving either the...Ch. A.4 - Find the length a by solving the equation...Ch. A.4 - Prob. 40ECh. A.4 - Prob. 41ECh. A.5 - Use your calculator to find the approximate value...Ch. A.5 - Prob. 2ECh. A.5 - Prob. 3ECh. A.5 - Prob. 4ECh. A.5 - Prob. 5ECh. A.5 - Prob. 6ECh. A.5 - Prob. 7ECh. A.5 - Prob. 8ECh. A.5 - Use your calculator to verify that the following...Ch. A.5 - Prob. 10ECh. A.5 - Prob. 11ECh. A.5 - Prob. 12ECh. A.5 - Prob. 13ECh. A.5 - Prob. 14ECh. A.5 - Prob. 15ECh. A.5 - Prob. 16ECh. A.5 - Prob. 17ECh. A.5 - Prob. 18ECh. A.5 - Prob. 19ECh. A.5 - Prob. 20ECh. A.5 - Prob. 21ECh. A.5 - Prob. 22ECh. A.5 - Prob. 23ECh. A.5 - Prob. 24ECh. A.5 - Prob. 25ECh. A.5 - Prob. 26ECh. A.5 - Prob. 27ECh. A.5 - Prob. 28ECh. A.5 - Prob. 29ECh. A.5 - Prob. 30ECh. A.5 - Prob. 31ECh. A.5 - Prob. 32ECh. A.5 - Prob. 33ECh. A.5 - Prob. 34ECh. A.5 - Prob. 35ECh. A.5 - Prob. 36ECh. A.5 - Prob. 37ECh. A.5 - Prob. 38ECh. A.5 - Prob. 39E
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