Вопрос школьника по предмету Математика
Ширина прямоугольника 16 дм а длина на 20 см больше. Чему равен периметр прямоугольника
Ответ учителя по предмету Математика
Решение :
16 дм = 160 см
то есть , 160 + 20 = 180 — длина
Периметр 180+180+20+20 = 400 см
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