Question

Найди площадь и периметр прямоугольника со сторонами 8см и 9 см

Answer 1

8*2+9*2=34 периметр
9*8=72площадь

Answer 2

Периметр=(8+9)Х2=34см
Площадь=8Х9=72см квадратных

Answer 3

Calculation of the Perimeter and Area of a Rectangle

To find the perimeter and area of a rectangle with sides measuring 8 cm and 9 cm, we can use the following formulas:

- Perimeter (P) = 2 * (length + width) - Area (A) = length * width

Let's calculate the perimeter and area step by step:

1. Perimeter: - Length (a) = 8 cm - Width (b) = 9 cm - P = 2 * (a + b) = 2 * (8 + 9) = 2 * 17 = 34 cm.

2. Area: - Length (a) = 8 cm - Width (b) = 9 cm - A = a * b = 8 * 9 = 72 cm^2.

Therefore, the perimeter of the rectangle is 34 cm and the area is 72 cm^2.

I hope this helps! Let me know if you have any further questions.