# Right Cylinder Calc : Find A_B

The top and bottom surface area of a cylinder is called the base area. Both top and bottom base area of a cylinder is always the same. A right circular cylinder has two congruent circles as parallel bases and a lateral surface consisting of a rectangle. This simple online Right Cylinder Calculator is used to find A_B helps you to calculate the base area of the right circular cylinder using the radius of the base circle. The base area of cylinder is given as A_{B} = Πr^{2}.

## Base Area of a Cylinder Calculator

The top and bottom surface area of a cylinder is called the base area. Both top and bottom base area of a cylinder is always the same. A right circular cylinder has two congruent circles as parallel bases and a lateral surface consisting of a rectangle. This simple online Right Cylinder Calculator is used to find A_B helps you to calculate the base area of the right circular cylinder using the radius of the base circle. The base area of cylinder is given as A_{B} = Πr^{2}.

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#### Formula:

Base Area = π × r^{2}
**Where,**
r = Radius
### Example:

Find A_B of the right cylinder having radius as 8cm?

#### The Equivalent Base Area of a cylinder

= π × 8^{2}

= 201.0619cm^{2}