Rabochaya tetrad' yavlyaetsya dopolneniem k uchebniku "Geometriya, 7-9" avtorov L.S.Atanasyana i dr. i prednaznachena dlya organizaczii resheniya zadach uchashhimisya na uroke posle ix oznakomleniya s novym uchebnym materialom. Na ehtom ehtape uchashhiesya delayut...