Предмет: Математика, автор: jmenya32

сумма периметров равностороннего треугольника и квадрата равна 21 см. начерти квадрат сторона которого равна стороне треугольника

Ответы

Автор ответа: влад0903

прямоугольний треугольника в ньом квадрат

Автор ответа: Universe18

У треугольника - 3 стороны, а у квадрата - 4.
4+3=7 - сторон всего
21:7=3 см - 1 сторона (и треугольника, и квадрата)
Вот и чертишь - квадрат со стороной 3 см. Стороны у них одинаковые.

Автор ответа: jmenya32

спасибо большое

Автор ответа: Universe18

Всегда пожалуйста!

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