7. The sum of the interior angles of a polygon is 900°. What is the measure of each
interior angle in nearest hundredths?
A. 128.570
B. 128.68°
C. 128.84°
D. 182.92°
8. In a triangle, the second angle is twice the first angle and the third angle is 12
degrees less than 5 times the first angle. What is the measure of the largest
angle?
A. 1080
B. 120°
C. 1320
D. 1440
9. The sum of the interior angles of a polygon is 1080°. What is the measure of each
exterior angle?
A. 45°
B. 90°
C. 270°
D. 360°
10. Each exterior angle of a regular polygon measures 24º. How many sides does it
have?
A. 10
B. 15
C. 20
D. 25
11. ABCDEFGH is a regular octagon. What is the measure of ZBAD?
A. 25°
B. 35°
C. 45°
D. 55°
12. How many sides does a regular polygon have if the interior angle of a regular
polygon is 150 degrees?
A. 6
B. 8
C. 10
D. 12
13. Each interior angle of a regular polygon measures 140°. What is the sum of all
its interior angles?
A. 9000
B. 1080°
C. 1260°
D. 1440°
14. If the number of sides of a polygon is increased by 5, by how much would the
sum of the interior angles of a polygon increase?
A. 720°
B, 9000
C. 1080°
D. 1260°
15. If the number of sides of a regular polygon is increased from 12 to 16, by how
much would the measure of each of its exterior angles decrease?
A. 7.5°
B. 7.750
C. 8.250
D. 8.5°​