31. How many sides does a polygon have if the sum of the measures of its interior
angles is 3, 240?
A. 14 B. 16 C. 18 D. 20
_____ 32. Which of the following is the sum of the interior angles of a 14-sided polygon?
A. 2, 160 B. 2, 150 C. 2, 140 D. 2, 130
_____ 33. How many sides does a convex polygon called nonagon have?
A. 10 B. 9 C. 8 D. 7
_____ 34. What is the name of a convex polygon having ten sides?
A. decagon B. hexagon C. octagon D. pentagon
_____ 35. Which of the following polygon considered as a regular polygon?
A. parallelogram B. rectangle C. rhombus D. square
_____ 36. How many sides are there in a polygon if the sum of their interior angles is 4, 140?
25 B. 24 C. 23 D. 22


_____ 37. Two interior angles of an octagon measure 83° and 97°, the measures of the six interior angles are congruent. Which of the following is the measure of each angle?
A. 180° B. 150° C. 120° D. 108°