Question

surface area of cylinders
height 10 and radius of 10 how do i work this out

Answer 1

2 π r2 + 2 π r h

Answer 2

\[surface area of cylinder is =2pir ^{2}+2pirh\]
so = 2*pi*100+2*pi*100

Answer 3

It is a closed cylinder or open cylinder????

Answer 4

yes

Answer 5

what does yes mean ??? open cylinder like a pipe or closed cylinder like a pepsi can??

Answer 6

closed cylinder see i know to use 2 π r2 + 2 π r h and when i do i get but it give me answer and that is not one of them

Answer 7

What r your options??

Answer 8

340 ,150,130,176,384,360,112,720

Answer 9

Any unit for radius and height like m, cm etc.???

Answer 10

well see i got it now they were doing it like \[\pi*5^2=25\pi then 2\pi5=10\pi 10\pi*10=100\pi +\pi*5^2=25\pi at the end you add 25\pi+25\pi+100\pi\] and gett 150pi

Answer 11

From where has the 5 come???
Y said radius was 10 and height was 10