1.

2. The perpendicular height of a cone is 12 cm and its slant height is13 cm. Find the radius of the base of the cone.

Answer»

Let l = Slant height, h = perpendicular height, r = radius

Using pythagoras theoram

l*l = h*h + r*r13*13 = 12*12 + r*rr*r = 169 - 144r = 5

Radius is 5 cm



Discussion

No Comment Found