Math, asked by ishikadhikia, 4 months ago

If the radius of a hemi-sphere is 21 cm then its C.S.A. will be

a) 2572 b) 2672 c) 2772 d) 2872

Answers

Answered by GangsterTeddy

4

Step-by-step explanation:

CSA of hemisphere=2πr²

CSA of hemisphere=2×22/7×21×21=2772cm²

Answered by Anonymous

7

Step-by-step explanation:

C.S.A of hemisphere is 2πr²

2×22/7×21×21

2772

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