AMSCO'S Geometry. New York - Rye High School

170 Congruence of Line Segments,Angles, and Triangles10. Given:mA 50, mB 45, 11. Given: GEH bisects DEF andAB = 10 cm, mD 50,mD mF.mE 45, and DE 10 cm.Prove: GFE HDEProve: ABC DEFEDHCEAB D FGF12. Given: AB > DE, BC > EF,ABC isnot congruent to DEF.CFProve: B is not congruent to E.ABDEExploration1. If three angles of one triangle are congruent to the corresponding anglesof another triangle, the triangles may or may not be congruent. Draw diagramsto show that this is true.2. STUVWXYZ is a cube. Write aparagraph proof that wouldconvince someone that STX,UTX, and STU are allcongruent to one another.WZXYVUSTCUMULATIVE REVIEW CHAPTERS 1–4Part IAnswer all questions in this part. Each correct answer will receive 2 credits. Nopartial credit will be allowed.1. Which of the following is an illustration of the associative property ofaddition?(1) 3(4 7) 3(7 4) (3) 3 (4 7) 3 (7 4)(2) 3(4 7) 3(4) 3(7) (4) 3 (4 7) (3 4) 7