# 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 Δ DEF: 55 dm, 82 dm, 61 dm Δ GHI: 24 mm, 25 mm, 7 mm Δ JKL: 32 dm, 51 dm, 82 dm Δ MNO: 51 dm, 45 dm, 24 dm  We would be pleased if you find an error in the word problem, spelling mistakes, or inaccuracies and send it to us. Thank you! Tips to related online calculators
Pythagorean theorem is the base for the right triangle calculator.

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