A right triangle with sides 3 cm, 4 cm and 5 cm is rotated the side of 3 cm to form a cone. The volume of the cone so formed is
Answers
Given : A right triangle with sides 3 cm, 4 cm and 5 cm is rotated the side of 3 cm to form a cone.
To find : The volume of the cone so formed
Solution:
A right triangle with sides 3 cm, 4 cm and 5 cm is rotated the side of 3 cm to form a cone.
Hence radius of cone = 3 cm
height of cone = 4 cm
Slant height = 5 cm
Volume of cone = (1/3)πr²h
r = radius = 3 cm
h = height = 4 cm
Volume of cone = (1/3)π(3)² * 4
= 12π cm²
using π = 3.14
= 37.7 cm²
Volume of cone = 37.7 cm²
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