Question

A cylinder has a radius of 40 ft and a height of 17 ft.

What is the exact surface area of the cylinder?

A. 4560π ft2


B. 3200π ft2


C. 1360π ft2


D. 680π ft2

Answer 1

A. 4560π ft2

Answer 2

i think a.

Answer 3

The radius is from the center of a circle or shape to the circumference.

Answer 4

The formula is:
\[A=2\pi rh+ 2 \pi r^2\]

Answer 5

http://lmgtfy.com/?q=surface+area+of+a+cylinder+r+40+height+17

Answer 6

this doesn't help the asker to understand how to do it.

Answer 7

(3.14)*40*(40+70) plugged in numbers .

Answer 8

Which means that it will be C. Because multiplied equals 1360Π ft^2

Answer 9

Rember that when you multiply that you need to follow PEMDAS as well.

Answer 10

It was A but thanks

Answer 11

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