Question

What's the sum of the interior angles of the polygon shown?Question options:A) 1,620°B) 1,980°C) 1,440°D) 1,260°

Answer 1

Using the formula ( n − 2 ) × 180 and n=number of sides (in this case 9), we have:

( 9 - 2 ) x 180 (Replacing the values)

7 x 180 (Subtracting)

1260 (Multiplying)

The answer is the option D.