Предмет: Математика, автор: mikayilmamedov

прошу умоляю помогите!!!!!!!!

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Автор ответа: zeooo

№13. угол В равен 180-70-60=50
угол АВD=углу DBC= 50:2=25
угол ADB=180-70-25=85
угол BDC=180-85=95

№14
угол BAC= 180-110-50=20
угол ABD=180-110=70
в треугольнике ABD угол ADB=90, угол DBA=70, значит угол DAB=20
угол CAD=угол СAB+угол BAD, а угол CAB=углуBAD=20, следовательно угол CAD=2углам BAD

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