a right triangle with sides 3cm,4cm,5cm is rotated the side of 3cm to form a cone.the volume of the cone so formed is
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If it is rotated about 3cm,the cones height will be 3 cm and radius 4 cm (since 5cm will be the hypotenuse)
V=1/3πr²h
=1/3×3.14×16×3
=16×3.14
=50.28cm³
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Volume of cone= 1/3 πr^2h=1/3*3.14*14*3=16*3.14=50.28 cm^3
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