MATHEMATICS

# Calculator for Border Area

This calculator will help you find the area of a border. The formula used in this calculator is listed below.

To use this calculator, you will need to know the outer length, inner length, {{mathVariabl3}} and {{mathVariabl4}}.

To give you a better mental model of the border, you can look at the visualization below. You can navigate the 3d-model of the border as you like.

Area = 0.0

## Border Area Formula

Formula variable explanation:

• B represents the area.
• l1 represents the Outer length.
• l2 represents the Inner length.
• w1 represents the Outer width.
• w2 represents the Inner width.

### LaTeX formula

If you are working in a TeX based editor you could use this TeX formula to calculate the border area.

\mathrm{B}= l1\cdot w1- l2\cdot w2

## How To Calculate The Border Area Your Self

Calculating the area is rather simple when you know the formula presented above. Follow these steps:

1. Write down this formula:

2. Then change the following variables with your values:
1. l1 shall be changed with the Outer length of your border. As an example l1 could be changed to 10.
2. l2 shall be changed with the Inner length of your border. As an example l2 could be changed to 10.
3. w1 shall be changed with the Outer width of your border. As an example w1 could be changed to 10.
4. w2 shall be changed with the Inner width of your border. As an example w2 could be changed to 10.