Question

Radius of base and height of cone is 5cm and 12cm respectively find slant height and total.s.a of cone

Answer 1

Answer:

13cm

Step-by-step explanation:

radius =5 cm

height =12 cm

l=√h2 +√r2

l= √144+√25

l=√169

l=13cm

Answer 2

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.