Question

Довжина прямокутника 18 см, а ширина - у 2 рази менша. Обчисли пери- метр і площу цього прямокутника.​

Answer 1

Відповідь на картинці

Answer 2

18:2=9 я знаю не так.......

Answer 3

Calculating the Perimeter and Area of a Rectangle

To calculate the perimeter and area of a rectangle, we can use the given length and width of the rectangle.

Given: - Length of the rectangle = 18 cm - Width of the rectangle = 2 times less than the length

Calculating the Width of the Rectangle

The width of the rectangle is given as 2 times less than the length. Therefore, we can calculate the width as follows:

Width = 18 cm / 2 = 9 cm

Calculating the Perimeter of the Rectangle

The perimeter of a rectangle is given by the formula: Perimeter = 2 * (Length + Width)

Substituting the given values: Perimeter = 2 * (18 cm + 9 cm) = 2 * 27 cm = 54 cm

The perimeter of the rectangle is 54 cm.

Calculating the Area of the Rectangle

The area of a rectangle is given by the formula: Area = Length * Width

Substituting the given values: Area = 18 cm * 9 cm = 162 square cm

The area of the rectangle is 162 square cm.