Question

the total surface area of the given solid,where the height of the cylinder is equal twice its radius,is​

Answer 1

Answer:

Step-by-step explanation:

We know that the total surface area of a solid cylinder is = 2(pi)(r)(r+h)

So , the condition given is h = 2r.

So substituting in the formula we get

TSA = 2 (pi)(r)(r+2r)

= 2 (pi)(r)(3r)

= 2 (pi)(3r^2)