Verified Answer :

AL2006

The surface area of a sphere is the area of four great circles . . .  4 π r²  .

Apparently, either 'C' or 'D' was supposed to be the correct choice,
but the  π  got lost  in the pantry on the way to the printer.

Answer:

Area of sphere is given by \(4\cdot \pi\cdot r^2\)

Step-by-step explanation:

The surface area of sphere is given by:

\(\text{Area of sphere}=4\cdot \pi\cdot r^2\)

Option C and D are correct but \(\pi\) is missing in the options

Option A and B are incorrect.

\(\pi=3.14\) to solve the area of sphere when radius is given a constant value.

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