В равнобедренном треугольнике угол при его вершине,противолежащей основанию,равен 40* (градусам)Найдите угол при основании. С рисунком
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15.05.2020 17:15
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1
70 градусов.
Объяснение:
Сумма углов треугольника равна 180
180 - 40 = 140
140/2 =70 градусов
ответ:70°
Объяснение:
Сумма углов в треугольнике 180°. В равнобедренном треуг. Углы при основании равны