A solid toy is in the form of a hemisphere surmounted by a right circular cone.the height of cone is 4cm and the diameter of the base is 8cm. determine the volume of the material used for making toy. if a cube circumscribes the toy, then find the difference of the volumes of the cube and toy
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radius of a cone is 4cm
radius of a hemisphere is 4cm
height of a cone is 4 cm
volume of a cone is 1/3πr²h
=1/3×22/7×4×4×4
=1408/21
and , volume of a hemisphere is 2/3πr³
= 2/3×22/7×4×4×4
=2/3×1408/7
=2816/21
volume of a cone is 1408/21
volume of a hemisphere is 2816/21
radius of a hemisphere is 4cm
height of a cone is 4 cm
volume of a cone is 1/3πr²h
=1/3×22/7×4×4×4
=1408/21
and , volume of a hemisphere is 2/3πr³
= 2/3×22/7×4×4×4
=2/3×1408/7
=2816/21
volume of a cone is 1408/21
volume of a hemisphere is 2816/21
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