What is the sum of the measures of the interior angles of a heptagon?

Solution:

The angles that lie inside a shape (generally a polygon) are said to be interior angles and a heptagon is defined as a polygon with 7 sides. 

Sum of the measures of the interior angles of a heptagon = (n - 2) × 180^º 

= (7 - 2) × 180^º 

= 5 × 180^º

= 900^º

Therefore, the sum of the measures of the interior angles of a heptagon is 900^º.

What is the sum of the measures of the interior angles of a heptagon?

Summary:

The sum of the measures of the interior angles of a heptagon is 900^º.