Предмет: Математика, автор: eylulbuluter12

найдите градусы углов треугольника, если соотношение двух из них 4:5 а сумма третьего равна сумме двух углов

Ответы

Автор ответа: Nina1952

4

1) 4+5=9частей 3-й угол 2) 4+5+9=18частей приходится на сумму всех углов 3) 180:18=10градусов приходится на 1 часть 4) 10*4=40 град 1-й угол 5) 10*5=50град 2-й угол 6)10*9=90град 3-й угол Ответ:40,50,90

eylulbuluter12: спасибо большое

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