Question

find the suface area of a cylander in terms of PI
#10
Photo attached

Answer 1

The lateral surface area is the circumference times the height. 7pi(11) or 77pi
The surface area is the lateral surface area plus the two bases. The 2 bases are circles and their area is pi(7/2)^2 and there are two of them so the total area of the two circles is 2(49/4)pi or (49/2)pi. Add that to the lateral surface area and you have the total surface area of the cylinder.

Answer 2

so its 121.5 cm ^2?

Answer 3

I thought you said you wanted it in terms of pi

Answer 4

well here are the answer options
a. 101.5 pi in^2

b. 110 pi in^2

c. 121.5 pi in^2

Answer 5

well, what is 77 pi + 49/2 pi?

Answer 6

no it would be A