3 Trapezoid Calculators
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Trapezoid area = ((sum of the bases) ÷ 2) • height
Lines BC and AD are parallel and are called bases.
Lines AB and DC are the nonparallel sides and are called legs.
Lines AC and DB are called diagonals.
The line perpendicular to lines AD & BC is
called the height or altitude.
The line parallel to lines AD & BC, is at the midpoints of lines AB and DC
and is called the median.
The length of the median = (Line AD + Line BC) ÷ 2
