Предмет: Математика, автор: vadim5a

Три участка шоссе образуют треугольник со сторонами 3,9 км 5,5 км и 4,1 км. На соревнованиях велосипедисты проехали по сторонам этого треугольника 4 раза , причём победитель затратил на это 1,5 часа. Какова была Средняя скорость победителя ?

Ответы

Автор ответа: miki68

0

4*(3,9+5,5+4,1)=54км
54:1,5=36км/ч

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