Question

The radius of the base and slant height of a cone are 21 cm and 35 cm respectively find the height of a cone brainly

Answer 1

ANSWER :

Radius of the base ( r ) = 21 cm

Slant height ( l ) = 35 cm

We Know That : l^2 = h^2 + r^2

=> h^2 = l^2 - r^2

=> h^2 = (35)^2 - (21)^2

=> h^2 = (35+21)(35-21)

=> h^2 = 56*14

=> h^2 = 784

=> h = 28 cm

Therefore, the height of the cone is equal to 28 cm

Hope this helps you☺☺