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The diameter of a cylinder is 12cm and height is 21.find surface area​

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Answer:

Hey MATE ! here is your answer

Diameter = 12 cm

Radius = d/2 = 12/2 = 6cm

Height = 21 cm

Therefore, Curved SURFACE area = 2 PIE r H

= 2 × 22/7 × 6 × 21

= 44×18 = 792 cm2.

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