You can
put this solution on YOUR website!What type of triangle has the lengths of 6, 7, 9
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9^2 < (6^2 + 7^2) so it's scalene
If the square of the longest side is equal to the sum of the squares of the other 2, it's a right triangle.
If it's less, it's scalene.
If it's more, it's obtuse.