Class 8 math lesson 01(geometry)

Download Class 8 math lesson 01(geometry)

Post on 12-Aug-2015

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<ol><li> 1. 1 1 </li><li> 2. 01 </li><li> 3. </li><li> 4. c d b a D A EB F x C </li><li> 5. ... </li><li> 6. , : () () () () () </li><li> 7. a b -: EB Ca x x b A F D : , a b x b a </li><li> 8. : (1) BE BC=a B BF BA=b (2) A C a b D () A, D C,D , ABCD- xEBF ABC EB Ca x b A F D b a </li><li> 9. a -7: E D a : , a A CB F a a a </li><li> 10. : (1) BE BC=a B BF BA=a (2) A C a D (3) A D C D , ABCD - BCBF ABC E D a A CB F a a a </li><li> 11. 5 . .4 . . 65 </li><li> 12. 1. 4. .; </li><li> 13. 1 4 . .3 . . . () () () 60 </li><li> 14. </li></ol>