Question

. The radius of base of a right circular cone is
6 cm and its slant height is 28 cm. What will
be the curved surface of the cone?
​

Answer 1

Answer:

ANSWER

For a cone, l=

h

2

+r

2

​

where h is the height.

Hence, l= 28 2 +21 2

​

l=35 cm

Curved surface area of a cone =πrl where r is the radius of the cone and l is the slant height.

Hence, curved surface area of this cone =

722 ×21×35=2310cm 2

Step-by-step explanation: