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nika54888
@nika54888
July 2022
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fir2103
Рассмотрим треугольник ABC. AB=x; BC =2x; AC = x+10. P = 70 см. Составим уравнение:
2x + x + x+10 = 70
4x + 10=70
4x = 60 |:4
x = 15
2x = 30
x+10= 25
Ответ: AB= 15 см; BC = 30 см; AC = 25 см.
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Answers & Comments
2x + x + x+10 = 70
4x + 10=70
4x = 60 |:4
x = 15
2x = 30
x+10= 25
Ответ: AB= 15 см; BC = 30 см; AC = 25 см.