Four sides of trapezoid

In the trapezoid ABCD is |AB| = 73.6 mm; |BC| = 57 mm; |CD| = 60 mm; |AD| = 58.6 mm. Calculate the size of its interior angles.


A =  76.58 °
B =  90 °
C =  90 °
D =  103.42 °


Solution in text D =
Solution in text D =  :  Nr. 1

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Most natural application of trigonometry and trigonometric functions is a calculation of the triangles. Common and less common calculations of different types of triangles offers our triangle calculator. Word trigonometry comes from Greek and literally means triangle calculation. See also our trigonometric triangle calculator. Cosine rule uses trigonometric SAS triangle calculator.

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