Theorem 15
Theorem 15:
(Converse to Pythagoras). If the square of one side of a triangle is the sum of the squares of the other two, then the angle opposite the first side is a right angle.
Theorem 15:
(Converse to Pythagoras). If the square of one side of a triangle is the sum of the squares of the other two, then the angle opposite the first side is a right angle.
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