Question

If n is number of sides, then sum of internal angles of a polygon is:

A. n x 180
B. n/2 (180)
C. (n-1)×180
D. (n-2)×180

Answer 1

D. (n-2)×180

Explanation:

Hope this helps

Answer 2

D

Explanation:

The answer is d using the internal angles sides formula.