Question

Q.1. Diameter of the base of a cone is 10.5 cm and its slant height is 10 cm. find

its curved surface area.​

Answer 1

Step-by-step explanation:

The C.S.A of cone is π×r×l.

radius= 10.5/2= 5.25

22/7× 5.25× 10

= 164.85

Answer 2

Answer:

164.85cm²

Step-by-step explanation:

GIVEN:

let, radius of the cone, r= 10.5/2cm

slant height of cone, l= 10cm

now,

c.s.a of cone= πrl

3.14×10.5/2×10cm²

= 164.85cm².

thus, curved surface area of cone is is 164.85 cm square.