Question

If The Height And Slant Height Of A Cone Is 12 cm and 13 cm. Find Its Radius

Answer 1

It will help you, try it

Answer 2

Slant height = L
Height = H
Radius = R
To find the radius,
using PGT IN THE CONE
$l {}^{2} = h {}^{2} + r { }^{2} \\ 12 {}^{2} = 13 {}^{2} + r {}^{2} \\ 144 = 169 + r {}^{2} \\ 144 - 169 = r {}^{2} \\ - 25 = r {}^{2} \\ - 5 = r$