Q. Could 7.7cm,4.0cm, and 1.7cm be the side lengths of a triangle?Choose 1 answer:(A) Yes(B) No
Check Triangle Inequality Theorem: To determine if three lengths can form a triangle, we use 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. We will check this for all three combinations of sides.
Calculate Sum of Shorter Sides: First, we check if the sum of the two shorter sides, 4.0cm and 1.7cm, is greater than the longest side, 7.7cm. We calculate 4.0+1.7 and compare it to 7.7.
Compare Sum to Longest Side: The sum of the two shorter sides is 4.0cm+1.7cm=5.7cm, which is not greater than the longest side, 7.7cm. This means that the triangle inequality theorem is not satisfied.
Conclusion: Since the sum of the lengths of the two shorter sides is not greater than the length of the longest side, the lengths 7.7cm, 4.0cm, and 1.7cm cannot form a triangle.
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