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Quiz 4.1
Geometry
Section 6.1
Name_________________________
Tell whether each figure is a polygon (yes or no). If it is a polygon a) name it,
b) tell if it is irregular or regular, c) tell if t is concave or convex
1.
2.
3.
4. Which term or terms
describe the figure
shown?
Yes or No
Yes or No
Yes or No
a) __________
a) __________
a) __________
I. quadrilateral
II. concave
III. irregular
b) __________
b) __________
b) __________
A. I only
c) __________
c) __________
c) __________
B. II only D. I and III
C. I and II
5. Find the sum of the interior angles of a convex 20-gon. _______________
6. Find the measure of one interior angle of a regular octagon. ________________
7. Find the value of x.
___________
1300
980
0
95
8. Find the measure of each interior angle of
quadrilateral RSTV.R
mR = _____
2x0
mS = _____
0
x
0
112
mT = _____
S
6x0
V
5x0
2x0
mV = _____
9. Find the value of x. ____________
3x0
0
4x
10. Which statement is NOT true about a
regular 16 – gon?
A. It is a convex polygon.
x0
2x0
2x0
B. It has 16 congruent sides.
C. The sum of the interior angles measures is
28800.
D. The sum of the exterior angles is 3600.
T