Question

In terms of pie what is the volume of the cone

Answer 1

Diameter=14 cm
Therefore radius=7 cm
slanted height =25 cm
Therefore vertical height h
= sqrt{(25)^2-(7)^2}
=sqrt(625-49)=sqrt 576=24
Therefore,
Volume of the cone
=(1/3) pi*r^2*h
= (1/3)(22/7)*7*7*24[As pi=22/7]
=22*7*24/3
=1232 cm^3
[Please note that if the radius or height is 7 units or multiples of 7,it is better to take the value of pi as 22/7,because in that case ,the 7 in the denominator can be cancelled out and we get our answer in integers]

Answer 2

How do you ever know what radius and slanted height is? Information isn't given yet...

Answer 3

@girl_things