Question

MS wire of lead of radius 9 cm is cast into a right circular cone of height 72 cm find the radius of the base of a cone

Answer 1

Step-by-step explanation:

Volume of hemisphere = volume of cone

2/3 * pie * 9^3 = 1/3 *pie * r^2 * 72

r^2 = 9 * 9 * 9 * 2/72

r = square root(81/4)

r = 9/2 = 4.5 cm ANSWER.

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