Предмет: Математика, автор: XxZeMoPxX

ПЖ СРОЧНО. ...................

Приложения:

ГАЗ52: 29 м²

Ответы

Автор ответа: evilforestart

Ответ: Площадь вскопанной клумбы 29 м²

Пошаговое объяснение:

представим что клумба прямоугольник не учитывая не вскопанный прямоугольный кусок, снизу с права

одна сторона его а = 7 м , а вторая равна b = 3 +2 = 5м

площадь прямоугольника это произведение его длины на ширину

S =a×b

S₁ = 7×5 = 35 м²

найдем площадь вырезанного кусочка прямоугольной формы

а= 7 - 4 = 3 м , а вторая равна b = 2м

S₂ = 3×2 = 6 м²

найдем площадь клубы, для этого из целого прямоугольника вычтем кусочек

S₃ = S₁ - S₂

S₃ = 35 - 6

S₃ = 29 м²

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