Question

if a right circular cone od=f height=24cm has a voloume 12.32 find the area of its curved surface

Answer 1

volume of cone= 1/3 πr^2 h
12.32 =1/3×22/7×r^2×24
12.32×3×7/1×22×24= r^2
0.49=r^2
0.7=r

C.S.A= 2πrh
2×22/7×0.7×24
105.6cm^2