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11Alexandr11 [23.1K]
3 years ago
12

Find the area of a circle with a diameter of 22 inches?

Mathematics
2 answers:
Lerok [7]3 years ago
4 0
R=\frac{Diameter}{2}

then

R=\frac{22~in}{2}

\boxed{R=11~in}

now we just need to apply this formula

S=\pi*R^2

S=\pi*11^2

\boxed{\boxed{S=121*\pi~in^2}}
Zigmanuir [339]3 years ago
4 0
d=2r\\
d=22\\
2r=22\\
r=11\ inches\\
\\
A=\pi r^2\\
A=\pi \cdot 11^2=3,14 \cdot 121=379,94\ inch^2
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