Предмет: Математика, автор: anaverzilina47

Периметр квадрата 20 см. Из двух таких квадратов составили прямоугольник. Найди периметр и площадь этого прямоугольника.

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Ответы

Автор ответа: 7vnbrqyrkyvd

1

1) 20*2=40(см) - Р прямоугольника

2)20:4=5(см)-сторона

3)(5+5)*5=50см2

7vnbrqyrkyvd: поставь коронку

Автор ответа: tatti13

0

1) 20:4=5 см длина стороны квадрата
2) 4+4=8см Длина стороны пятиугольника
3)(8+4)*2=24см Периметр прямоугольника
4) 8*4=32 Квадратных сантиметров площадь прямоугольника

tatti13: 4*8=32 Сантиметров квадратных площадь прямоугольника

tatti13: Не правильно написала
Сторона квадрата 20:4=5
Периметр прямоугольника (10+5)*2=30 см
Площадь прямоугольника 10*5=50 Квадратных сантиметров

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