Question

what is TSA of a cone whose radius is r/2and slant height is 2/​

Answer 1

Answer:

Simplifying the above expression, the total surface area of the cone is =πr2(r2+2l)=πr(r4+2l2)=πr(r4+l). Hence, the total surface area of the cone whose radius is r2 and slant height is 2l is πr(r4+l).