Question

Find the curved surface area of a cone with base radius 5.25 cm and slant height 10cm. 

Answer 1

Given that,
Radius of a base of a cone = 5.25 cm 

Slant height of cone=10 cm 

Curved surface area of cone=` pirl` 

`=22/7xx5.25xx10cm^2` 

` =(22xx0.75xx10)cm^2` 

`= 165 cm^2` 

Thus, the curved surface area of a cone is  `165cm^2`