1. What do you call a polygon with nine sides?
A. quadrilateral B. pentagon C. hexagon D. nonagon
2. Find the sum of the measures of the interior angles of a convex polygon with 18 sides. A. 810 B. 1080 C. 1620 D. 2880
3. Each exterior angle of a regular polygon has a measure of 40. How many sides does the regular polygon have?
A. 8 B. 9 C. 10 D. 11
4. How many sides does a convex polygon have if the sum of the measure of its angles is 2, 160? A. 11 B. 12 C. 13 D. 14
5. All of the following are polygons EXCEPT
A. B. C. D.
6. How do you call a polygon having 10 sides?
A. Dodecagon B. Nonagon C. decagon D. octagon
7. Which of the following figures does not belong to the group?
A. B. C. D.
8. Which of the following represent a convex polygon?
A. B. C. D.
9. What is the sum of the measures of the interior angles of a triangle?
A. 1800 B. 3600 C. 5200 D. 7200
10. Which of the following is considered as regular polygon?
A. square B. rectangle C. rhombus D. parallelogram
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Answer:
1.d.
2.d.
3.b.
4.b.
6.a
9.a.