Предмет: Математика, автор: fedosovoleg07

Под строительную площадку отвели участок прямоугольной формы.При утверждение плана застройки его длину и ширину увеличили на 20% Насколько увеличилось площадь участка после утверждения плана застройки?Ответ вроде не 44!?

Ответы

Автор ответа: venanuspro79
0

Ответ:

Пусть а-ширина,b-длина. 100%=1

S=ab=1.2×1.2=1.44.,т.е площадь увеличилась на 44%

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