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11. ANSWER: 71
Mid-Chapter Quiz: Lessons 6-1 through 6-3
Find the sum of the measures of the interior
angles of each convex polygon.
1. pentagon
Use
WXYZ to find each measure.
ANSWER: 540
13. 3. 18-gon
ANSWER: 75
ANSWER: 2880
Find the measure of each interior angle.
14. WZ
ANSWER: 24
15. ANSWER: 105
5. ANSWER: ALGEBRA Find the value of each variable.
The sum of the measures of the interior angles
of a regular polygon is given. Find the number
of sides in the polygon.
7. 720
ANSWER: 6
17. ANSWER: s = 13 , t = 7
9. 1800
ANSWER: 12
Find the value of x in each diagram.
18. ANSWER: d = 42 and f = 14
11. Find x and y so that each quadrilateral is a
parallelogram.
ANSWER: 71
Use
WXYZ to find each measure.
20. eSolutions Manual - Powered by Cognero
13. ANSWER: x = 3, y = 5
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18. D
ANSWER: Mid-Chapter
Quiz: Lessons 6-1 through 6-3
d = 42 and f = 14
Find x and y so that each quadrilateral is a
parallelogram.
ANSWER: D
COORDINATE GEOMETRY Determine
whether the figure
is a parallelogram. Justify your answer with the
method indicated.
24. A(–6, –5), B(–1, –4), C(0, –1), D(–5, –2); Distance
Formula
ANSWER: Yes; both pairs of opposite sides must be congruent.
The distance between A and B is
. The distance
20. ANSWER: x = 3, y = 5
between B and C is
and D is
. The distance between C
. The distance between D and A is
. Since both pairs of opposite sides are
congruent, ABCD is a parallelogram.
21. 25. Q(–5, 2), R(–3,–6), S(2, 2), T(–1, 6); Slope Formula
ANSWER: x = 8, y = 7
ANSWER: No; both pairs of opposite sides must be parallel;
23. MULTIPLE CHOICE Which of the following
quadrilaterals is not a parallelogram?
since the slope of
parallelogram.
slope of
, QRST is not a
A
B
C
D
ANSWER: D
COORDINATE GEOMETRY Determine
whether the figure
is a parallelogram. Justify your answer with the
method indicated.
24. A(–6, –5), B(–1, –4), C(0, –1), D(–5, –2); Distance
Formula
eSolutions Manual - Powered by Cognero
ANSWER: Yes; both pairs of opposite sides must be congruent.
The distance between A and B is
. The distance
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