Question

Длина прямоугольника 9 см а ширина в 3 раза меньше вычисли площадь и периметр

Answer 1

24.это площадь и. 27. пириметр

Answer 2

длина 9,соотв ширина = 9\3=3

площадь - сумма сторон = 9+9+3+3=24

периметр = ширина*длина=9*3=27

Answer 3

Calculating the Area and Perimeter of a Rectangle

To calculate the area and perimeter of a rectangle with a length of 9 cm and a width that is 3 times smaller, we can use the following formulas:

Area of a Rectangle: The area (A) of a rectangle is given by the formula: A = length * width.

Perimeter of a Rectangle: The perimeter (P) of a rectangle is given by the formula: P = 2 * (length + width).

Calculating the Width

Given that the width is 3 times smaller than the length, we can calculate the width as follows: 9 / 3 = 3.

Calculating the Area

Using the formula for the area of a rectangle, we can calculate the area as follows: A = length * width = 9 * 3 = 27 square cm.

Calculating the Perimeter

Using the formula for the perimeter of a rectangle, we can calculate the perimeter as follows: P = 2 * (length + width) = 2 * (9 + 3) = 2 * 12 = 24 cm.

Therefore, the area of the rectangle is 27 square cm and the perimeter of the rectangle is 24 cm.