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Geometry X Unit 5 Review Name ______________________ Date _______________________ 1. Fill in the statements with the appropriate word(s) 2. Example: 3. Complete the definition and draw a sketch for each of the following. Use correct markings in your diagram. a. An angle bisector is a segment that divides an angle of a triangle into two ___________________ _______________. b. A median of a triangle is a segment that starts at ______________ angle and has an endpoint at the ________________ of the opposite side. c. An altitude of a triangle is a segment that starts at ______________ angle and is _____________________ to the opposite side. d. A perpendicular bisector is a segment that _______________ another segment at a __________ angle. It does not have to start at the _____________. 4. 5. a. b. 6. Name all angles that must be less than 1 . 7. Name all angles that must be greater than 3 . 8. 9. 10. 11. Can the following values be used to form a triangle? Explain. 12. Give the range of values for the third side so a triangle can be formed. a. 4, 5, 7 a. 4, 6, ? b. 6, 10, 3 b. 9, 14, ? c. 11, 6, 5 c. 12, 12, ? 13. Write a 2-column proof for the following: Given: FH is an altitude and a median of EFG . Prove: EFG is isosceles