Question

Вычисли площадь остатка цветной бумаги, если из листа прямоугольной формы , длина иширина которого 7см и 5см , вырезали квадрат стороной 2 см.

Answer 1

7*5=35-площадь

2*4=8-вырезали

35-8=27осталось

Answer 2

7*5=35 площадь всего листа 2*2=4 площадь вырезанного квадрата 35-4=31площадь остатка цветной бумаги

Answer 3

Calculating the Area of the Remaining Colored Paper

To calculate the area of the remaining colored paper, we can start by finding the area of the rectangular sheet and then subtracting the area of the square that was cut out.

- The length of the rectangular sheet is 7 cm. - The width of the rectangular sheet is 5 cm. - The side of the square cut out is 2 cm.

First, let's calculate the area of the rectangular sheet: Area of the rectangular sheet = length × width Area of the rectangular sheet = 7 cm × 5 cm Area of the rectangular sheet = 35 cm²

Now, let's calculate the area of the square that was cut out: Area of the square = side × side Area of the square = 2 cm × 2 cm Area of the square = 4 cm²

Finally, we can find the area of the remaining colored paper by subtracting the area of the square from the area of the rectangular sheet: Area of the remaining colored paper = Area of the rectangular sheet - Area of the square Area of the remaining colored paper = 35 cm² - 4 cm² Area of the remaining colored paper = 31 cm²

So, the area of the remaining colored paper is 31 cm².