Question

Детская площадка имеет форму квадрата со стороной 7 1/2м вычислите ее площать и периметр.

Answer 1

1)7 1/2 * 7 1/2 = 15/2 * 15/2 = 225/4 = 56 1/4 м² - площадь
2)7 1/2 * 4 = 15/2 * 4 = 30 м - периметр площадки
Ответ:S=56 1/4 м².,P=30 м.

Answer 2

Calculation of Area and Perimeter of a Square Playground

To calculate the area and perimeter of a square playground with a side length of 7 1/2 meters, we can use the formulas for area and perimeter of a square.

Area of a square is calculated by multiplying the length of one side by itself: Area = side length x side length.

Perimeter of a square is calculated by multiplying the length of one side by 4: Perimeter = 4 x side length.

Let's calculate the area and perimeter using these formulas.

Calculation:

1. Area of the square playground: - Side length = 7 1/2 meters - Area = side length x side length - Area = 7.5m x 7.5m = 56.25 square meters

2. Perimeter of the square playground: - Side length = 7 1/2 meters - Perimeter = 4 x side length - Perimeter = 4 x 7.5m = 30 meters

Therefore, the area of the square playground is 56.25 square meters and the perimeter of the square playground is 30 meters.

Please note that the calculations are based on the given side length of 7 1/2 meters and the assumption that the playground is a perfect square.