Question

Find the volume of the cone when the height is 28mm and the circumference of the base is 132mm.

Answer 1

Answer:

circumference of circle is=2πr

now 2πr=132 according to question

so, r= 132/2π = 21mm

volume of cone is= 1/3 π(r*r)h

= 1/3 *π*21*21*28

=12930.7953 mm^2 nearly