What is the sum of the interior angle measures of a 20-gon?

Question

(1 point)

A. 360 deg

B. 3,240°

C.3,600°

D. 162 deg

Answer 1

To find the sum of the interior angle measures of a polygon, we can use the formula:

Sum = (n-2) * 180°

where n is the number of sides of the polygon.

For a 20-gon, n = 20.

Substituting this value into the formula, we get:

Sum = (20-2) * 180°
Sum = 18 * 180°
Sum = 3,240°

Therefore, the sum of the interior angle measures of a 20-gon is 3,240°.

The correct answer is B. 3,240°.