Question 61

Height of a right circular cylinder is 12 cm. If the radius of its base is 21 cm, then what will be the curved surface area of the cylinder?

Solution

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Height of the cylinder = 12 cm
Radius of its base = 21 cm
Curved surface area = $$2\pi rh = 2\times\dfrac{22}{7}\times21\times12 = 1584 cm$$

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