Question

the diameter of a right circular cone of metal is 0.2 and height is 40 cm a spere is formed by melting it .find the radius of the spere

Answer 1

Answer:

Step-by-step explanation:

radius = 0.2 cm

height = 40 cm

Let radius of sphere be r

vol. of cone = vol. of sphere

1/3πr²h = 4/3πr³

1/3rh = 4/3r²

1/3×0.2×40 = 4/3×r²

r² = 2

r = √2 = 1.41

Answer 2

Answer:

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