7.What is the name of a polygon whose each interior angle is 140°?
a. Decagon d. octagon c. nonagon d. undecagon d.720° vo

8. The sum of the exterior angles of any polygon is a. 360° b. 180° C. 540

9. Find the measure of 2x. 5 d. 65° c. 75° b. 80° a. 60° d.5

10. What is the exterior angle of a regular 60-gon? a. 6 b. 5.5 C. 6.6 7​