Question

The sum of the measures of the interior angles of a convex polygon is 3060º. How many sides does the polygon have?

A. 17

B. 18

C. 15

D.19

Answer 1

The answer is 19. You would solve it like this 19 - 2 x 180 and that equals 3060. So your answer is 19 D

Answer 2

Your answer is D (19). You can get this answer by plugging it into the equation (n - 2)x180 = total degrees. Once you substitute 19 in for n (number of sides) and 3060 in for the degree amount, your equation will look like this:

(19 - 2)x180 = 3060