(1) can be transformed to express the length of hypotenuse C as
C = (A2 + B2)1/2 (1b)
C = ((5 m)2 + (10 m)2)1/2
= 11.2 m
The angle is square (90 degrees) if
Calculate square triangle hypotenuse - C - length:
A / sin a = B / sin b = C / sin c (2)
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