Trapezoid
Properties and formulas for geometric calculations
Overview
A trapezoid is a quadrilateral with one pair of opposite sides parallel. These are called the bases. The non-parallel sides are called legs.
- The height \(h\) is the perpendicular distance between the bases
- Adjacent interior angles on each leg sum to 180°
- The median \(m\) is parallel to the bases
- \(\displaystyle m = \frac{a+c}{2}\)
Angle bisector
Median
Altitude and the Orthocenter
Triangle bisector
Pythagorean theorem
Pythagorean triples
Circle
Square
Rectangle
Rhombus
Parallelogram
Trapezoid
Formulas
Side lengths
Diagonals
Height
Median width
Area
Perimeter
Angles
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