Question

A metal pipe is 77 cm long .The inner diameter of a cross section is 4 cm

Answer 1

ANSWER :

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Given : -

Height of metal pipe = 77 cm

Radius of metal pipe

= 4 / 2

= 2 cm

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FIND : -

Area of Metal pipe = ?

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SOLUTION : -

Area of Cylinder ( CSA )

= 2×pi×r×h

= 2 × 22/7 × 2 × 77

= 2 × 44 × 11

= 88 × 11

= 968 cm^2

928 cm^2 is the area of the metal pipe.

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