Question

The sum of the measure of the interior angles of a polygon is 2160°. What polygon is it? 14-gon 12-gon 13-gon 15-gon

Answer 1

Answer:

It is a 14-gon.

Step-by-step explanation:

Sum of internal angles of an  n sided polygon =  180(n - 2) degrees.

2160 = 180(n - 2)

2160 = 180n - 360

`180n =  2520

n = 2520 / 180

= 14.

Answer 2

Answer:

12-gon

Step-by-step explanation: