Right Cylinders

1. Right Cylinders
By: Evann W.
Class: 8M

2. What are they?
A right cylinder is a 3-D (3-dimensional) solid
rounded object that is made up of two circles
on the top and bottom and one rectangle
(quadrilateral).
Some real life examples include: soup cans,
unsharpened pencils, candles, etc.

3. A Net of a Right Cylinder
When this net is folded-up correctly it
forms a right cylinder.
Top Circle
Bottom Circle
Rectangle

4. Finding the Surface Area
To find the surface area of a right cylinder, you must follow this formula:
SA= 2(3.14)(R2) + 2(3.14)(R)(H)
Radius = 5 cm
Height = 11 cm
Now, use the dimensions of the right
cylinder in the formula
SA= 2(3.14)(5x5) + 2(3.14)(5)(11)
SA= 6.28x25 + 6.28x5x11
SA= 157 + 345.4
SA= 502.4 cm2