Question

find the total surface area of cone whose radiud is r/2and slant heigh is 2l​

Answer 1

HEY MATE HER IS UR ANSWER

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GIVEN RADIUS IS R/2

          SLANT HEIGHT = 2L

TSA OF A CONE IS  =  PIE R (L+R)

                                    22/7  ×7/2 ( 2L + R/2)

                                     11(4L+R/2)

                                      22L + R

TSA OF A CONE IS 22L + R

                                       

Answer 2

T.S.A of cone =2πr(r+l)
2π×r/2(r/2+2l)
πr(r+4l)/2 sq.unit.