Предмет: Математика, автор: Tim231996

1)Чему равен периметр квадрата,стороны которого равны:
а)1м 50см; б) 3дм 5см?
2)Длина просёлочной дороги 7км,а длина шоссе 63км.
На сколько километров просёлок короче шоссе?
Во сколько раз шоссе длиннее просёлка?

Ответы

Автор ответа: vivatantin

периметр квадрата равен а) 1м 50см*4=150см*4=600см=6м
б)3дм 5см*4=35см*4=140см=14дм
просёлок короче шоссе на : 63км-7км=56км
шоссе длинее просёлка в : 63км / 7 км=9раз

Автор ответа: TigerYa

14дм ещё можно= 1м 4дм

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