the inner diameter of a circular well is 4.2 metre it is 12 m deep find its inner curved surface area
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well is in cylindrical
therefore we use
Curved surface area of cylinder
= 2π × (radius) × (height or depth)
Curved surface are of cylinder
= 2π × (4.2/2) × 12
= 2π × 2.1 × 12
= 2 × (22/7) × 2.1 × 12
= 146.4 metre square
therefore we use
Curved surface area of cylinder
= 2π × (radius) × (height or depth)
Curved surface are of cylinder
= 2π × (4.2/2) × 12
= 2π × 2.1 × 12
= 2 × (22/7) × 2.1 × 12
= 146.4 metre square
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