Question

what is the TSA of cone if Radius =2r ,slant height = l/2
please answer and fallow me ​

Answer 1

Answer:

TSA of cone =πrl+πr^2

Step-by-step explanation:

radius =2r

slant height is l/2

here radius is doubled and slant height is halved so

new TSA =π×2r×l/2 +(π2r)^2

=πrl+4r^2π^2

Answer 2

Step-by-step explanation:

TSA= πr(r+l)

=π2r(2r+1/2)

=π×2r×5/2rl

=π5rl