Question

What is the total surface area of the following cylinder?

Answer 1

Answer: $791.28cm^2$

Step-by-step explanation:

$A=2\pi rh+2\pi r^2$

We have the diameter, to calculate the radius, divide by 2.

12/2=6cm

height: 15cm

Plug in the formula.

$A=2(3.14)(6cm)(15cm)+2(3.14)(6cm)^2\\A=565.20cm^2+226.08cm^2\\A=791.28cm^2$