Question

Which of the following is the surface area of the right cylinder below?

Answer 1

Answer is C

A=2πrh+2πr^2

A=2π*6*14+2π*(6)^2

A=π*(2*6*14+2*6^2)= 240 π

Answer 2

Answer: OPTION C

Explanation:

You need to use this formula for calculate the surface area of the right cylinder:

`SA=2\pi r^2+2\pi rh`

Where "r" is the radius and "h" is the height.

You can identify in the figure that:

`r=6units\\h=14units`

Knowing this, you can substitute these values into the formula
`SA=2\pi r^2+2\pi rh`, therefore you get that the surface area of this right cylinder is:

`SA=2\pi (6units)^2+2\pi (6units)(14units)`

`SA=240\pi\ units^2`