Question

What is the perimeter of this shape​

Answer 1

Check the picture below.

so we have three lines of a rectangle and two lines from a quarter of a circle, one circle whose circumference is 12 and another of circumference 4, and a line of 8.

`10+8+10~~ + ~~\stackrel{ \textit{quarter of circle} }{\cfrac{1}{4}\cdot 2\pi (12)}~~ + ~~\stackrel{ \textit{quarter of circle} }{\cfrac{1}{4}\cdot 2\pi (4)}~~ + ~~8 \\\\\\ 36+6\pi + 2\pi \implies 36+8\pi ~~ \approx ~~ \text{\LARGE 61.13}~cm`