An alternative method to find the area of a regular polygon only requires two known variables, the length of the side and the number of sides.

The alternative formula for determining the area of a polygon is defined as:

\(A\) \(=\) \(\dfrac{1}{4}\) \(\cdot\) \(n\) \(\cdot\) \(L^2\) \(\cdot\) \(\cot(\dfrac{\pi}{n})\)

\(A\): the area of the polygon

\(n\): the number of sides

\(L\): the length of any side

The SI unit of area is: \(square \text{ } meter\text{ }(m^2)\)

## Find \(A\)

Use this calculator to determine the area of a polygon when the number of sides and the length of any side are given.

Hold & Drag

CLOSE

the number of sides

\(n\)

the length of any side

\(L\)

\(meter\)

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