The perimeter of a right trapezium, also known as a right trapezoid, is the sum of the lengths of its four sides.

A right trapezium is a four-sided figure with two parallel sides and two non-parallel sides, where one angle is a right angle (90 degrees).

Real-life examples of right trapeziums include the shape of many roofs, where the top part is wider than the bottom, such as in a typical house roof. It can also be seen in the shape of some architectural features, like windows or doorways with a sloped or angled top.

The formula for determining the perimeter of a right trapezium/trapezoid is defined as:

\(P\) \(=\) \(AB\) \(+\) \(BC\) \(+\) \(CD\) \(+\) \(AD\)

\(P\): the perimeter of the trapezium/trapezoid

\(AB\): the length of side AB

\(BC\): the length of side BC

\(CD\): the length of side CD

\(AD\): the length of side AD

The SI unit of perimeter is: \(meter\text{ }(m)\)

## Sides Given

Use this calculator to determine the perimeter of a right trapezium/trapezoid when the lengths of its sides are given

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the length of side AB

\(AB\)

\(meter\)

the length of side BC

\(BC\)

\(meter\)

the length of side CD

\(CD\)

\(meter\)

the length of side AD

\(AD\)

\(meter\)

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