Question

FAN+MEDAL! Sara needs to cover the top and sides of the cylinder below. About how many square inches of paper will Sara need?

Answer 1

To answer this question, you'll need to find the surface area of the top of the container (which is a circle), along with the surface area of the side of the container.

Note that the diameter of the container is given and is 6 inches; therefore, the radius is ... what? Note that the height of the container is 8 inches.

think: How would you calculate the area of the side? What info do you need to do that?

Answer 2

Is the radius 3 inches?

Answer 3

Yes. Glad you have that. How would you use that radius (3 inches) to calculate the area of the top of the container?

Answer 4

L = 2πrh

Answer 5

Hint: Look up "area of a circle" or just "circle area." Still need to calculate the area of the top of the container.

L = 2πrh looks good. Mind defining L in words? Mind substituting r and h to calculate L?

Answer 6

L means lateral surface are. i am not sure what you mean by substituting r and h

Answer 7

The answer is 207

Answer 8

Thank you!