Q. Which of the following sets of numbers could represent the three sides of a triangle?{12,20,34}{4,6,11}{10,12,21}{13,18,33}
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.
Apply Theorem to Set {12,20,34}: Apply the Triangle Inequality Theorem to the first set of numbers {12,20,34}. Check if the sum of any two numbers is greater than the third number.12+20=32, which is not greater than 34.
Set {12,20,34} Analysis: Since 32 is not greater than 34, the set {12,20,34} does not satisfy the Triangle Inequality Theorem and cannot represent the sides of a triangle.
Apply Theorem to Set {4,6,11}: Apply the Triangle Inequality Theorem to the second set of numbers {4,6,11}. Check if the sum of any two numbers is greater than the third number.4+6=10, which is not greater than 11.
Set {4,6,11} Analysis: Since 10 is not greater than 11, the set {4,6,11} does not satisfy the Triangle Inequality Theorem and cannot represent the sides of a triangle.
Apply Theorem to Set {10,12,21}: Apply the Triangle Inequality Theorem to the third set of numbers {10,12,21}. Check if the sum of any two numbers is greater than the third number.10+12=22, which is greater than 21.
Set {10,12,21} Analysis: Check the other two combinations for the set {10,12,21} to ensure all conditions of the Triangle Inequality Theorem are met.10+21=31, which is greater than 12.12+21=33, which is greater than 10.
Apply Theorem to Set {13,18,33}: Since all combinations of the set {10,12,21} satisfy the Triangle Inequality Theorem, this set can represent the sides of a triangle.
Set {13,18,33} Analysis: Apply the Triangle Inequality Theorem to the fourth set of numbers {13,18,33}. Check if the sum of any two numbers is greater than the third number.13+18=31, which is not greater than 33.
Set {13,18,33} Analysis: Apply the Triangle Inequality Theorem to the fourth set of numbers {13,18,33}. Check if the sum of any two numbers is greater than the third number.13+18=31, which is not greater than 33.Since 31 is not greater than 33, the set {13,18,33} does not satisfy the Triangle Inequality Theorem and cannot represent the sides of a triangle.
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