Question

the radius of the base of a cone is 14 cm and its height is 24 cm find volume and curved surface area

Answer 1

4928 cm^2 is right volume
volume=1/3 πr^2h
1/3x22/7x14x14x24
=4928

Answer 2

Given :

The radius of the base of a cone is 14 cm and its height is 24 cm

To Find:

find volume and curved surface area

Solution:

Radius of cone = 14 cm

Height of cone = 24 cm

Volume of cone =$\frac{1}{3} \pi r^2 h = \frac{1}{3} \times \frac{22}{7} \times 14^2 \times 64$

Volume of cone = $13141.33 cm^3$

Curved surface area = $\pi r \sqrt{h^2+r^2}=\frac{22}{7} \times 14 \times \sqrt{24^2+14^2}=1222.535 cm^2$

Hence the curved surface area is 1222.535 sq.cm. and volume of cone is 13141.33 cubic cm