Question

What is the length of one side of a regular pentagon if its perimeter is 205 mm?

Answer 1

We know a pentagon has 5 sides, so the perimeter is 5 times the side length. \[P=5s\]To solve for the side length we need to divide both sides by 5 \[\frac{P}{5}=\frac{5s}{5}\]\[s=\frac{P}{5}\]

In this particular case: \[s=\frac{205}{5}=41mm\]

Answer 2

thank you