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OpenStudy (anonymous):
Two sides of a triangle have lengths 11 and 18. Write an inequality to represent the possible lengths for the third side, x.
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Directrix (directrix):
By the triangle inequality theorm, one side of a triangle is shorter than the sum of the other two and greater than the positive difference of those two sides.
Directrix (directrix):
So, x < 29 but greater than 7. 7 < x < 29 @thelaw2
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