Question

the diameter of the base of cone is 10 centimetre then radius of its base is​

Answer 1

Step-by-step explanation:

→ Given diameter of the base of the cone is 10 cm

∴ radius =5 cm. (∵ radius=

2

diameter

).

Also, the slant height of the cone =17 cm.

∴ The curved surface area of the cone is

′

πrl

′

.

r: radius of the base.

l: slant height.

S=πrl=π×5×17=85π cm

2

.

∴ curved surface area of the cone is 85π cm

2

Answer 2

Answer:

Diameter = 2r

therefore , radius= Diameter/2

i.e. radius of the given cone is 10/2= 5cm