Question

In a right circular cone if radius is
increased by four times and Slant height
is
reduced to 1/4 then the find the curved
Surface area​

Answer 1

Answer:

If the radius and slant height of a right circular cone are 4 cm and 7 cm respectively, then its curved surface area will be 88 cm2

Answer 2

Answer:

curved surface area of cone= πrl

new curved surface area of new cone= π4rl/4

sk old and new curved surface area remains. same