Question

question 11 of 25
what is the sum of the measures of the interior angles of a 14 - sided polygon?
a. 2520°
b. 2880°
c. 2160°
d. 1400°

Explanation:

Step1: Recall interior - angle sum formula

$S=(n - 2)\times180^{\circ}$, where $n$ is the number of sides of the polygon.

Step2: Substitute $n = 14$

$S=(14 - 2)\times180^{\circ}$.

Step3: Calculate the value

$14-2 = 12$, then $12\times180^{\circ}=2160^{\circ}$.

Answer:

C. 2160°