Question

the hight of the radius of a base of a cone are 12cm and 5cm respectively then the slant height of cone is.​

Answer 1

Answer:

• 13 cm is the required answer

Step-by-step explanation:

According to the Question

It is given that

→ Radius of base ,b = 12cm

→ Height of cone ,p = 5cm

We have to calculate the slant height of the cone .

Let the slant height of cone be h cm

Using Pythagoras Theorem

• h² = b²+p²

Where,

• h denote slant height
• b denote Base
• p denote Perpendicular height

Substitute the value we get

→ h² = 12² + 5²

→ h² = 144 + 25

→ h² = 169

→ h = √169

→ h = 13

• Hence, the slant height of the cone is 13 cm

Answer 2

Given :-

The height of the radius of a base of a cone are 12cm and 5cm respectively

To Find :-

Slant height

Solution :-

We know that

l² = r² + h²

Where

l = slant height

r = radius

h = height

l² = (12)² + (5)²

l² = 144 + 25

l² = 169

l  = √169

l = 13 cm

Therefore

Length of slant height is 13 cm