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

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

anonymous · Answer

A. 4560π ft2

anonymous · Answer

i think a.

jchick · Answer

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

alexandervonhumboldt2 · Answer

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

anonymous · Answer

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

alexandervonhumboldt2 · Answer

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

jchick · Answer

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

jchick · Answer

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

jchick · Answer

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

anonymous · Answer

It was A but thanks

jchick · Answer

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