The Pythagorean Theorem and Square Roots
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By about 2000 b.c. the Egyptians knew (or believed) that if a right triangle had legs of lengths 3 and 4 units, then the hypotenuse—the side opposite the right angle—had a length of 5 units.
KeywordsRational Number Successive Approximation Irrational Number Pythagorean Theorem Positive Rational Number
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