Question

find the area of a sphere of diameter 7 cm.
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Answer 1

Answer:

154cm2

Step-by-step explanation:

d=7

r=7/2

A = 4πr2

A = 4*22/7*7/2*7/2

A=22*49/7

A=154cm2

Answer 2

Answer:

Step-by-step explanation:

Area of the sphere= $4\pi r^{2}$ = $4.\pi . (3.5)^{2}$  = 153.86 $cm^{2}$