Q. Which of the following sets of numbers could not represent the three sides of a triangle?{14,27,40}{4,9,14}{9,21,29}{12,17,28}
Recall Triangle Inequality Theorem: Recall the Triangle Inequality Theorem which states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.
Check Set {14,27,40}: Check the set {14,27,40} to see if it satisfies the Triangle Inequality Theorem.Calculate if 14 + 27 > 40, 14 + 40 > 27, and 27 + 40 > 14.14+27=41 which is greater than 40.14+40=54 which is greater than 27.27+40=67 which is greater than {14,27,40}0.All conditions are satisfied, so this set could represent the sides of a triangle.
Calculate Set {14,27,40}: Check the set {4,9,14} to see if it satisfies the Triangle Inequality Theorem.Calculate if 4 + 9 > 14, 4 + 14 > 9, and 9 + 14 > 4.4+9=13 which is not greater than 14.This set does not satisfy the Triangle Inequality Theorem, so it cannot represent the sides of a triangle.
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