Question

I’m lost please help me!!!

Find the perimeter of the composite figure to the nearest hundredth

3 yd
6 yd
4 yd

Answer 1

Check the picture below.

so the perimeter of it, is simply the borderline length, so for this case that'd be the borderline for the rectangle plus the borderline for the semi-circle or namely its circumference, as you see there in red, with a radius of 1.5.

`\stackrel{ \textit{\LARGE perimeters} }{\stackrel{rectangle}{(3+4+6)}~~ + ~~\stackrel{semi-circle}{\cfrac{1}{2}\cdot 2\pi (1.5)}}\implies 13+1.5\pi ~~ \approx ~~ \text{\LARGE 17.71}~yd`