Question

the csa and volume of pillar is 264 and 396 question no . 26​

Answer 1

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Hi...

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A.T.Q.

C.S.A OF PILLAR...264m²

2πrh =264

rh = 264 × 7 / 2×22

rh= 42m .........1...

Volume of Pillar.....396m³

πr(r+h) = 396

πr²+ rh = 396

Putting 1

πr² = 396-42

πr² = 354

r² = 354×7/22

r² = 112.63 ( approx)

r= 10.61m

Therefore... height.= 42/r

h = 42/10.61

h = 3.9 ( approx)

THEREFORE

Diameter = 21.22m(approx)

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Hope it Helps....

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