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If the surface area of a sphere is 36π cm², then the radius of the sphere is:

A3 cm

B5 cm

C2 cm

D4 cm

Answer:

A. 3 cm

Read Explanation:

surface area of sphere=4πr2=4\pi r^2

4πr2=36π4\pi r^2=36\pi

πr2=9π\pi r^2=9\pi

r2=9r^2=9

r=3r=3


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