Question

Find the sum of the interior angle measure of a regular polygon with 20 sides

Answer 1

3240°

Explanation:

Using the formula:

sum of interior angle = (n - 2) * 180 (where n is the number of sides)

sum of interior angle = (20 - 2) * 180

sum of interior angle = 18 * 180

sum of interior angle = 3240° ANS