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Does a triangle with the side lengths 9 24 21 make right triangle?
Wiki User
∙ 11y ago
A triangle is right triangle if square of the longest side is equal to sum of squares of other two sides.
Square of 24 = 576
Sum of square of 9 and 21 = 92 + 212 = 81 + 441 = 522
576 ≠522.
It is clear that triangle is not a right triangle.
Wiki User
∙ 11y ago
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