A fountain is made up of two semicircles and a quarter circle. The diameter of the semicircles is 20ft. Find the perimeter of the fountain. Round your answer to the nearest tenth.
How do I find the perimeter C of this fountain?..
A fountain is made up of two semicircles and a quarter circle.
The diameter of the semicircles is d = 20ft. Find the perimeter of the fountain. Round your answer to the nearest tenth.
\(\large C=\frac{2d\pi}{4}+2\times\frac{d\pi}{2}=\frac{d\pi}{2}+d\pi\)
Quarter circle + two times semicircle
\(\large C=20ft\times\frac{\pi}{2}+20ft\times \pi=20ft\times\frac{3\pi}{2}\)
\(\large C=94.248ft\)
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