Q. Which of the following sets of numbers could not represent the three sides of a triangle?{11,14,24}{12,21,33}{15,25,39}{10,22,31}
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 First Set Numbers: Check the first set of numbers {11,14,24} to see if they satisfy the Triangle Inequality Theorem.11 + 14 > 24 (25 > 24) - True11 + 24 > 14 (35 > 14) - True14 + 24 > 11 (38 > 11) - TrueAll conditions are satisfied, so {11,14,24} could represent the sides of a triangle.
Check Second Set Numbers: Check the second set of numbers 12,21,33 to see if they satisfy the Triangle Inequality Theorem.12 + 21 > 33 (33 > 33) - False, the sum is equal to the third side, not greater.This set does not satisfy the Triangle Inequality Theorem, so 12,21,33 cannot represent the sides of a triangle.
Conclude Problem: Since we have already found a set that cannot represent the sides of a triangle, we do not need to check the remaining sets. We can conclude the problem here.
More problems from Checkpoint: Rational and irrational numbers