Question

A road sign is in the shape of a heptagon (7 sides). What is the measure of each angle on the sign? Round to the nearest tenth. I gave y'all the exact question, I have no idea where to start.

Answer 1

$\frac{(n-2)\cdot180}{n}\\\\ n=7\\ \frac{(7-2)\cdot180}{7}=\frac{5\cdot180}{7}\approx 128.6^{\circ}$