Question

what expression could be used to calculate the sum of the interior angles of a 14 - gon? (14 - 2)180 not enough information. we must know if the polygon is regular to proceed. $\frac{(12 - 2)180}{12}$ $\frac{(14 - 2)180}{14}$

Explanation:

Step1: Recall the formula

The sum of interior - angles of a polygon with $n$ sides is given by $(n - 2)\times180^{\circ}$.

Step2: Identify the number of sides

For a 14 - gon, $n = 14$.

Step3: Substitute $n$ into the formula

Substituting $n = 14$ into $(n - 2)\times180^{\circ}$, we get $(14 - 2)\times180$. We don't need to know if the polygon is regular to find the sum of its interior angles.

Answer:

A. $(14 - 2)180$