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Question

The curved surface area of a right circular cylinder of height 14 cm is 88 cm2. Find the diameter of the base of the cylinder. Assume π=227.

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Solution

Height (h) of cylinder = 14 cm
Let the diameter of the cylinder be d.
Curved surface area of cylinder =88 cm2
2πrh=88 cm2 (r is the radius of the base of the cylinder)
πdh=88 cm2 (d=2r)227×d×14=88cm2d=2 cm
Therefore, diameter of the base of the cylinder is 2 cm.

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