Question

What is the sum of the measures of the interior angles of an octagon?

A. 2160°
B. 1440
C. 45°
D. 2880°
E. 1080°
F. 360°

Answer 1

Answer E is correct

Explanation:

An octagon has 8 sides.

So, in the question, they're asking for the sum of measures of the interior angles.

For that, you can use the below formula.

Sum of the measures of the interior angles in a polygon = 180 ( n - 2 )

Here,

n ⇒ number of sides

Let us solve it now.

180 ( n - 2 )

180 ( 8 - 2 )

180 × 6

1080°