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9.1-9.3 Quiz Review Reference Materials 9.1 Similar Right Triangles 9.2 Pythagorean Theorem 9.3 Converse of the Pythagorean Theorem Triangle Inequality Theorem The length of each side of a triangle must be less than the sum of the lengths of the other two sides. Tips for classifying quadrilaterals: First check if it’s a parallelogram (both pairs opp. sides ≅, diagonals bisect each other, etc.). Then use converse of Pythagorean theorem to check for right angles. ìï all sides congruent corner ® rectangle üï ý Could it be a square? í diagonals ® rhombus ïþ ïî diagonals congruent Name: Date: Geometry 9.1-9.3 Quiz Review Answers 9.1 1. 9.2 9.3 2. Name: Date: Geometry 9.1-9.3 Quiz Review 9.1 Similar Right Triangles Write a proportion using the appropriate geometric mean theorem. Then solve for the value of the variable. 1. 2. 9.2 Pythagorean Theorem Find the length of the hypotenuse of the right triangle. Tell whether the side lengths form a Pythagorean triple. Name: Date: Geometry 9.2 Continued Find the unknown side length. Round to the nearest tenth, if necessary. 9.3 Converse of the Pythagorean Theorem Classify the quadrilateral. Explain how you can prove that the quadrilateral is that type. 1. 2. 3.