Question

Найди периметер и площадь ыигуры. какие прямоугольники можно построить с такой же площадью если длины сторон равны целому числу сантиметров?

Answer 1

Если каждый штрих = 1 см, то

Периметр = 28 см; Площадь = 3*3 + 9*(1*1) = 9 + 9 = 18 см^2

Прямоугольники:

1) 1*18

2) 2*9

3) 3*6

Answer 2

Perimeter and Area of the Figure

The perimeter and area of the figure can be calculated using the given information. The figure is a square with a side length of 4 units.

The perimeter of a square is calculated by multiplying the length of one side by 4, and the area is calculated by squaring the length of one side.

Perimeter: The perimeter (P) of the square is given by the formula: P = 4 * side length. Substituting the given side length of 4 units: P = 4 * 4 = 16 units.

Area: The area (A) of the square is given by the formula: A = side length squared. Substituting the given side length of 4 units: A = 4 * 4 = 16 square units.

Rectangles with the Same Area

Rectangles with the same area as the given square can be constructed using the area formula for a rectangle, which is length multiplied by width.

To find rectangles with the same area as the square (16 square units) and with side lengths as whole numbers in centimeters, we can consider the following options: 1. A rectangle with a length of 8 units and a width of 2 units: - Area = length * width = 8 * 2 = 16 square units. 2. A rectangle with a length of 7 units and a width of 2.7 units: - Area = length * width = 7 * 2.7 ≈ 18.9 square units, which is not equal to 16 square units.

Therefore, the rectangle with a length of 8 units and a width of 2 units has the same area as the given square.

This provides a clear understanding of the perimeter and area of the given figure, as well as the construction of rectangles with the same area using whole numbers as side lengths in centimeters.