A right angled triangle of sides 20 cm, 21 cm and 29 cm is made to rotate on the longest side. Find the volume of cone so formed.
Answers
Answered by
0
The volume of the cone is V = 420 π cm^3
Step-by-step explanation:
Sin θ = 20 / 29
Radius "r" = BC sin θ
= 21 x 20 / 29 cm
Now
volume of upper cone + volume of lower cone
= πr^2 H + πr^2 h
= πr^2 ( H + h) [ Since H + h = 29]
= π x 21 x 20 / 29 x 29
= 21 x 20π
V = 420 π cm^3
Thus the volume of the cone is V = 420 π cm^3
Also learn more
What is volume of a cylinder whose length is 6.1 metre and radius is 0.031 ?
https://brainly.in/question/6710540
Similar questions