Question

find the surface area of a sphere of radius 7cm

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Answer 1

Answer:

See below.

Step-by-step explanation:

The surface area = 4πr^2 where r is the radius.

So when r = 7:

Surface area = 4 * π * 7^2

= 196π cm^2,

which is 615.75 cm^2 to the nearest hundredth.