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4.7 Triangle Inequalities
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Relationship between SIDES and ANGLES:
In every triangle, the longest side is opposite the largest angle. In every triangle, the shortest side is opposite the smallest angle.
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Example 1: Name the angles from largest to smallest:
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Example 2: Name the sides from longest to shortest:
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You Try It…
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A Few More…
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Can ANY 3 segment lengths make a triangle?
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Triangle Inequality Theorem
The SUM of the lengths of ANY 2 SIDES of a triangle is GREATER THAN the length of the third side.
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Example 3: Can the side lengths form a triangle? Explain.
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Can the side lengths form a triangle? Explain.
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Can the side lengths form a triangle? Explain.
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You Try It…
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