**Surface Area of a Cylinder**

SA= (πr²) + (2πrh) + (πr²)

The lenght of the rectangle is equal to the circumference of the circle.

Circumference (c) = πd (πxd) or 2πr (2xπxr)

radius (r) = distance (length) from the center to the outer ring.

radius (r) = distance (length) from the center to the outer ring.

pi (π) = is a constant and is aproximately equal to 3.14

diameter (d) = twice the length of the radius. (2r)

Volume of a Cylinder

## 4 comments:

You had very good diagrams, but i think you made a mistake at the volume of cylinder. You said pi,r,squared x b?

yeah. i typed it wrong. but i corrected it already. thanks for telling =)

nice job alex!

thanks nadine =)

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