Question

Периметр прямоугольника 16,6 см. длина 4 целых одна вторая найдите площадь прямоугольника

Answer 1

4 1/2 (четыре целых одна вторая) = 4,5
4,5 + 4,5 = 9 - две длины
16,6 - 9 = 7,6 - две ширины
7,6 : 2 = 3,8 - ширина прямоугольника
4,5 * 3,8 = 17,1 - площадь 

Answer 2

Calculation of Perimeter

To find the perimeter of a rectangle, we need to know the length and width of the rectangle. The formula for the perimeter of a rectangle is:

Perimeter = 2 * (length + width)

In this case, the perimeter of the rectangle is given as 16.6 cm, and the length is given as 4 whole units and one-half. Let's calculate the width using the given information.

Let's assume the width of the rectangle is 'w' cm.

Using the formula for the perimeter, we can write the equation as:

16.6 = 2 * (4 + w)

Simplifying the equation, we get:

8 + w = 8.3

Subtracting 8 from both sides of the equation, we get:

w = 0.3

Therefore, the width of the rectangle is 0.3 cm.

Now that we have the length and width of the rectangle, we can calculate the area.

Calculation of Area

The formula for the area of a rectangle is:

Area = length * width

Substituting the values, we get:

Area = 4.5 * 0.3 = 1.35 cm^2

Therefore, the area of the rectangle is 1.35 square centimeters.