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Understand the relationship between the lengths of sides and the sizes of angles in a triangle using the Triangle Inequality Theorem. Explore examples and inequalities within triangles.
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Section 5-5 Inequalities in One Triangle
Theorem 5-10 • If one side of a triangle is longer than another side, then the angle opposite the longer side is larger than the angle opposite the shorter side.
D 10 6 N A 8 Example:
Theorem 5-11 • If one angle of a triangle is larger than the other angle, then the side opposite the larger angle is longer than the side opposite the smaller angle.
A T C Example: CT < TA < CA