Question

a cylinder has tsa of 462 cm square .its csa is 1 by 3 of its tsa. find the radius and height.

Answer 1

Step-by-step explanation:

Curved surface area = 462/3 = 154 sq cm. The area of the two ends = 462–154 = 308 sq cm. The area of each end = 308/2 = 154 sq cm. Radius of the cylinder = [154*7/22]^0.5 = 49^0.5 = 7 cm

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