courtj17 courtj17

15-07-2016
Mathematics

Answered

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

1,600π m2

800π m2

400π m2

200π m2

Verified Answer :

apologiabiology apologiabiology

15-07-2016

SA=4pir^2
r=20m
SA=4pi20^2
SA=4pi400
SA=1600pi m^2

Answer Link

Anonymous Anonymous

15-07-2016

the formula of surface area of sphere= 4pir^2
radius=20 m
S.A=4pi20^2
S.A=4pi*400
S.A=1600 pi m2
so the answer is a 1600 pi m2

Answer Link

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