Question

what is the sum of the measures of the interior angles of an octagon? enter your answer in the box.

Explanation:

Step1: Recall angle - sum formula

The sum of interior angles of a polygon is $(n - 2)\times180^{\circ}$, where $n$ is the number of sides.

Step2: Identify $n$ for octagon

An octagon has $n = 8$ sides.

Step3: Calculate sum

$(8 - 2)\times180^{\circ}=6\times180^{\circ}=1080^{\circ}$

Answer:

$1080$