Question

What of the following is the surface area of the right cylinder?

Answer 1

I'm giving metals.

Answer 2

the surface area cylinder formula is 2 x pi x radius to the second power + 2 x pi x radius x height

Answer 3

I keep getting 395!

Answer 4

so... your answer should be in terms of pi

Answer 5

and your answer should be 126 pi

Answer 6

Your formula is:\[SA=2 \pi r h + 2 \pi r ^{2}\]

Answer 7

Filling in our values we get:\[SA = 2 \pi (7)(2) + 2 \pi (7) ^{2}\]Doing the math then:

Answer 8

\[SA= 28 \pi +98 \pi \]And of course that comes to:\[126\pi \]

Answer 9

Did you understand what me and @IMStuck said?? @cline13

Answer 10

@cline13 .....r u there?

Answer 11

I didn't know it was supposed to be in terms of pi. So basically I apply the numbers to the formula then attach pi at the end?

Answer 12

well yeah because the answer u had was what 126 pi equaled