###### Asked in Math and ArithmeticAlgebraGeometry

Math and Arithmetic

Algebra

Geometry

# What is the equation for area?

## Answer

###### Wiki User

###### January 11, 2010 9:14PM

### The most commonly used rectangular equation for area is:

**length · width**

Some others

### Area of Circle

- pi · r2

### Area of an Elipse

- pi · radius1 · radius2

### Area of a Parallelogram

- base · height

### Area of a Trapezoid

- height / 2 ( base1 + base2 )

### Area of a Triangle

- 1 / 2 ( base · height )