# Stadium (geometry)

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A **stadium** is a geometric shape constructed of a rectangle with semi-circles at a pair of opposite sides.^{[1]} An alternate name for this two-dimensional shape is a discorectangle.^{[2]}

The shape is used for athletics and horse racing tracks.

## Formulas

The perimeter of a stadium is and the area is ^{[3]}

(In these formulas represents the length of the straight sides and the radius of the semicircles.)

## See also

## References

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