How To Find Slant Height of A Cone? | TIRLA ACADEMY

Slant Height of Cone(l) =?

Let,

Height(h) =12cm

Radius of Cone(r) =5cm

Slant Height of Cone(l) =√(h² + r²)

= √(12² + 5²)

= √(144+25)

= √169

= 13 cm.

So, the Slant Height of a Cone = 13 cm.