Предмет: Геометрия, автор: lia0404

Два острых угла прямоугольного треугольника относятся как 4:5.Найдите больший острый угол.Ответ дайте в градусах

Ответы

Автор ответа: SweetTrIsHkA
1
Острые углы прямоуголього треугольника в сумме дают 90 градусов.
Пусть один угол будет "1", а другой "2"
Значит, что 1:2=4:5
1)4+5=9(частей)-приход. на 90 градусов
2)90:9=10(градусов)- призод на одну часть
3)Угол1=10*4=40градусов
4)Угол2=10*5=50градусов
Ответ:больший угол прямоугольного треугольника равен 50градусам
Автор ответа: sabir2003
0
90/4+5 x 5= 50 больший угол 

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