Question

Diameter of the base of a cone is 10.9 cm and its slant height is 11 cm. Find its curved surface area.

Answer 1

Answer:

188.41cm^2

Step-by-step explanation:

given:-

diameter=10.9 radius=10.9/2

slant height=11cm

curved surface of a cone =πrl

therefore,22/7×10.9/2×11

so,CSA=11/7×10.9×11

the answer arises that

the CSA=1318.9/7

curved surface area of cone =188.41cm^2