Math, asked by silentkiller000, 1 year ago

A solid hemisphere of radius 3 cm is melted to cast a right circular cone of the same base as that of hemisphere. Find the height of the cone.


BinDaSSgirL01: ..

Answers

Answered by BinDaSSgirL01
6
\huge\mathfrak{Solution:}

Since the base of the hemisphere and cone are equal

Therefore, radius of the base of the cone = 3 cm

Suppose height of the cone = h cm

Since cone is casted by melting the hemisphere

Therefore, volume of the hemisphere = volume of the cone

Therefore, 1/2 × 4/3 × pi × r^3 = 1/3 × pi × r^2 × h

or 2 × r^3 = r^2 × h

or 2 × (3)^3 = (3)^2 × h [because r = 3 cm]

or h = 2 × 3 × 3 × 3 / 3 × 3 = 6

Hence, height of the cone = 6 cm

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Answered by Anonymous
5
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