Предмет: Геометрия, автор: Мария14Снегирь

Один из острых углов прямоугольного треугольника в 4 раза меньше другого.В другом прямоугольном треугольнике разность острых углов равна 54 градуса . Подобны ли эти треугольники ? Почему?Очень нужно,плиз!!!!

Ответы

Автор ответа: Ivanna2013

0

x+4x= 90

5x=90

x= 18

18 * 4=72

x+x+54=90

2x=36

x=18

18+54=72

Подобны по двум углам

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