Question

A cylinder has a diameter of 10 decimeters. What is the length of the curved surface?

Please explain also (Idk why I don't understand this)

Answer 1

they're asking for the lateral surface area ... hint: roll a piece of paper ...you'll understand what they mean ...

Answer 2

How will I know the height? They are only giving the diameter

Answer 3

right ... they're only looking for the length wich is the circumference

Answer 4

The are asking you for the circumference of the cylinder. "What is the length of the curved surface"

Answer 5

yes yes

Answer 6

... and tell your teacher no one uses decimeters any more!

Answer 7

10 pi

Answer 8

they do in Europe ...

Answer 9

where in Europe? news to me.

Answer 10

>_< Thanks, I understand what they mean.. <.< But not how to do it..

Answer 11

anywhere in Europe... LOL is the metric system... therefore still in use ...

Answer 12

well, yes, metric there. many European friends and contacts ... don't know any where decimeter is used. anyway, let me not distract from the curved surface :)

Answer 13

if "length" of the curved surface is what's needed, as opposed to "height," then you are probably looking for the circumf of the base: pi times the diameter, or 10 pi decimeters *cough*

Answer 14

Thanks ^^