Height of the trapezoid, i.e. the distance between the sides \( a \) and \( b \).

Angle

$$ \alpha $$ Unit $$ - $$

The angle enclosed by the sides \( c\) and \( a \). Alternatively, the trapezoid height can be expressed with the angle \( \beta \). This is the angle enclosed by the sides \( d\) and \( c \):\[ h ~=~ d \, \sin(\beta) \]

Side length

$$ c $$ Unit $$ \mathrm{m} $$

Length of the corresponding side of the trapezoid (see illustration). If \( c = d \), then the trapezoid is isosceles.

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