Reverse Pythagorean theorem

Given are lengths of the sides of the triangles. Decide which one is rectangular:

Δ ABC: 77 dm, 85 dm, 36 dm Wrong answer
Δ DEF: 55 dm, 82 dm, 61 dm Wrong answer
Δ GHI: 24 mm, 25 mm, 7 mm Wrong answer
Δ JKL: 32 dm, 51 dm, 82 dm Wrong answer
Δ MNO: 51 dm, 45 dm, 24 dm Wrong answer









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See also our right triangle calculator. See also our trigonometric triangle calculator.

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