Предмет: Геометрия, автор: Dynяша8

Высота трапеции равна 20 см, площадь ее равна 500 см квадратных. Найдите среднюю линию трапеции.

Ответы

Автор ответа: viosagmir
0

S = h * ( a + b ) / 2

 

( a + b ) / 2 - средняя линия

 

a и b ни откуда не берем. Это средняя линия, которая нам нужна.

 

( a + b ) / 2 = S/h =  500/20 = 25

 

Ответ: 25

 

Автор ответа: Oksano4ka
0

S=m*h, m - средняя линия. 20m=500

m = 25 см.

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