Question

What is the sum of the measures of the interior angles of a 20-sided figure?

Responses
3,240°
360°
3,600°
180°

Answer 1

3,240°

Explanation:

The sum of the measures of the interior angles of a polygon with n sides can be found using the formula:

(n-2) * 180°

So, for a 20-sided figure, the sum of the interior angles would be:

(20-2) * 180° = 18 * 180° = 3,240°