Question

Find the csa, tsa, and volume of cylinder where height is 8 cm and diameter is 21 cm​

Answer 1

Answer:

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Answer 2

Given,

Height= 8cm

Diameter =21cm

Radius = 21/2cm

= 10.5 cm

C.S.A.=2πrh

=( 2× 22× 21 × 8 ) / 7×2

= 7,392 /14

= 528 sq.cm

T.S.A.= 2πr (h + r)

= 2×π×r ( 8+10.5 ) cm

= 2 × 22/7 × 21/2 × 18.5

= 17,094 / 14

= 1221 sq.cm

Volume = πr2h

= 22/7 × (10.5)2 × 8

= 19,404 / 56

= 346.5 cu.cm

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