Question

The CSE of a cylinder of height 28 cm is 352 square cm find the diameter of the base of cylinder and TSA of cylinder

Answer 1

Heya !!

Here's your answer.. ⬇⬇
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C.S.A of cylinder = 352 cm²
Radius of cylinder ( r ) = 28 cm

C.S.A = πr²h
352 = 22/7 × r² × 28
352 = 22 × 4 × r²
352/22 = 4 × r²
16/4 = r²
r² = 4
r = √4
r = 2cm.

Diameter ( d ) = 2r
= 2(2)
= 4 cm

T.S.A of cylinder = 2πr ( h + r )
= 2 × 22/7 × 2 ( 28 + 2 )
= 88/7 × 30
= 377.14 cm²
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Hope it helps..
Thanks :)

Answer 2

Answer:

C.S.A of cylinder = 352 cm²

Radius of cylinder ( r ) = 28 cm

C.S.A = πr²h

352 = 22/7 × r² × 28

352 = 22 × 4 × r²

352/22 = 4 × r²

16/4 = r²

r² = 4

r = √4

r = 2cm.

Diameter ( d ) = 2r

= 2(2)

= 4 cm

T.S.A of cylinder = 2πr ( h + r )

= 2 × 22/7 × 2 ( 28 + 2 )

= 88/7 × 30

= 377.14 cm²