A rectangle with vertices (0,0), (4,0), (4,6) and (0,6) is revolved about the x-axis to create a cylinder. What is the volume of this cylinder?
E.NOTA (none of these above)
I'm thingking of NOTA. But it confuses me at the part where it says "revolved about the x-axis", i don't know if the way I understand it is correct, because if it's not then I definitely solved it wrong :P
Taking a rectangle and revolving it around the x-axis certainly creates a cylinder.
Step 1. Draw the rectangle
Step 2. Draw the cylinder
Then using with
November 22nd 2010, 06:19 AM
Thank you. I have another question, it sounds silly , but how to you know the radius is 6? I picture how a rectangle revolves around the x axis, and 6 looks like the circumference to me. Can you please explain?