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Unformatted text preview: In the figure, ABC, CDE, AFD and BFE are straight lines. Prove z y x a + + = 4. In the figure, ED BC // . ° = ∠ 30 ABE , ° = ∠ 100 BED and ° = ∠ 70 BCD , Prove CD AB // 5. In the figure, DE AB // . Prove ° = +180 z y x 6. In the figure, ABDG, CEG, ACF, and DEF are straight lines. ° = ∠ 20 AGC , ° = ∠ 30 ACB , ° = ∠ 40 CEF and DF BC // . (a) Find GCF ∠ (b) Prove FA GA ⊥...
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 Winter '11
 fugee
 Geometry, Po Shan Memorial College, Po Shan Memorial, deductive geometry Ex.93, Prove QR

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