Question

2) Ifd is a diameter of a sphere and S is curved surface area,
then show that - S= πd^2.
please give ans. fast and collect 25 points.
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Answer 1

Answer:

We know that C.S.A of a sphere is 4×pi× r^2.

S=pi ×(2r)^2

S=pi×d^2 [d=2r]

Answer 2

Answer:

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