A 3-4-5 right triangle is a triangle whose side lengths are in the ratio of 3:4:5. In other words, a 3-4-5 triangle has the ratio of the sides in whole numbers called Pythagorean Triples. Remember that a 3-4-5 triangle does not mean that the ratios are exactly 3: 4: 5; it can be any common factor of these numbers.
Explanation:
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