Предмет: Геометрия, автор: igorsokurenko2

Одна сторона прямоугольника равна 18 см, а вторая на 12 см больше. Вычисли периметр прямоугольника.

Ответы

Автор ответа: piksle1221

0

а=18cм <-|
b=?, на 12cм больше _|
Р=?
Решение:
18+12=20
18+18+20+20=36+40=76
Ответ: 76см

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