Углы треугольника относятся как 3:3:5. Найдите углы треугольника.
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2
24.02.2020 09:40
1
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Объяснение: Пусть х-1 часть, тогда ∠1=3·х, ∠2=3·х, ∠3=5·х. Сумма всех углов треугольника равна 180°, значмт 3х+3х+5х=180, 11х=180 х=16
° Тогда∠1=∠2=3·16
=49
°, ∠3= 5·16
=81
°