Question

1. connecting to real life the border of a susan b. anthony dollar is a regular polygon. what is the measure of each interior angle? round your answer to the nearest degree. the measure of each interior angle is about

Explanation:

Step1: Recall interior - angle formula

The formula for the measure of an interior angle of a regular polygon is $\theta=\frac{(n - 2)\times180^{\circ}}{n}$, where $n$ is the number of sides of the polygon. A Susan B. Anthony dollar has 11 sides ($n = 11$).

Step2: Substitute $n = 11$ into the formula

$\theta=\frac{(11 - 2)\times180^{\circ}}{11}=\frac{9\times180^{\circ}}{11}=\frac{1620^{\circ}}{11}\approx147^{\circ}$

Answer:

$147^{\circ}$