Question

Perpendicular height of a cone is 12 cm and slant height is 13 cm. Find the radius of the cone.

Answer 1

$r = \sqrt{ {l}^{2} - {h}^{2} }$

$r = \sqrt{ {13}^{2} - {12}^{2} }$

$r = \sqrt{139 - 144}$

$r = \sqrt{25}$

r = 5cm

Hence,

Radius - $\huge{\red{5cm}}$

Answer 2

Answer:

Step-by-step explanation:

L=13, h=12, r=?

Therefore,

L^2=r^2+h^2

(13) ^2=r^2+(12) ^2

169-144=r^2

25=r^2

r=5

Answer=5 CM