Question

The volume of a cylinder of height 8cm isi 1232 cu cm.FInd its total surface area

and curved surface area of a cylinder​

Answer 1

Step-by-step explanation:

Height of cylinder ( H ) = 8 cm

Volume of cylinder = 1232

πR²H = 1232

22/7 × R² × 8 = 1232

R² = ( 1232 × 7 ) / ( 22 × 8 )

R² = 8624/176

R² = 49

R = √49 = 7 cm.

Therefore,

Curved surface area of cylinder = 2πRH = 2 × 22/7 × 7 × 8 = 352 cm².

And,

Total surface area of cylinder = 2πR ( R + H ) = 2 × 22/7 × 7 ( 7 + 8 ) = 44 ( 15 ) = 660 cm².

Answer 2

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