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schepotkina [342]
2 years ago
14

What is the surface area of a sphere with a radius of 20 m?

Mathematics
2 answers:
navik [9.2K]2 years ago
8 0
SA=4pir^2
r=20m
SA=4pi20^2
SA=4pi400
SA=1600pi m^2
RideAnS [48]2 years ago
6 0
The formula of surface area of sphere= 4pi*r^2
radius=20 m
S.A=4*pi*20^2
S.A=4*pi*400
S.A=1600 pi m2
so the answer is a 1600 pi m2
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Step-by-step explanation:

we know that

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we have

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P=2(L+W)

P=2(\frac{31}{4}+\frac{13}{4}))

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