Question

Периметр квадрата 28см.,Найди длину одной его стороны и площадь КАК? помогите найдите ответ))))))))

Answer 1

1)28:4=7(см)-длина одной стороны.
2)7*7=49(см)-площадь квадрата

Answer 2

П кв-28см.
дл стороны в 4 раза меньше
28:4=7смдлина стороны
7х7=49кв.см площадь квадрата

Answer 3

Finding the Length of One Side and the Area of a Square with a Perimeter of 28 cm

To find the length of one side and the area of a square with a perimeter of 28 cm, we can use the formulas for the perimeter and area of a square.

Perimeter of a square: The perimeter of a square is the sum of all its sides. In a square, all sides are equal in length. Therefore, the perimeter of a square can be calculated by multiplying the length of one side by 4.

Area of a square: The area of a square is the product of its length and width. In a square, all sides are equal in length. Therefore, the area of a square can be calculated by squaring the length of one side.

Let's calculate the length of one side and the area of the square.

Calculation:

Given: Perimeter of the square = 28 cm

Step 1: Calculate the length of one side (a) using the perimeter formula.

The perimeter formula for a square is: P = 4a, where P is the perimeter and a is the length of one side.

Substituting the given value of the perimeter (P = 28 cm) into the formula, we can solve for a:

28 = 4a

Dividing both sides of the equation by 4, we get:

a = 7 cm

Therefore, the length of one side of the square is 7 cm.

Step 2: Calculate the area of the square (S) using the side length (a).

The area formula for a square is: S = a^2, where S is the area and a is the length of one side.

Substituting the calculated value of the side length (a = 7 cm) into the formula, we can solve for S:

S = 7^2

Simplifying the equation, we get:

S = 49 cm^2

Therefore, the area of the square is 49 cm^2.

Answer:

The length of one side of the square is 7 cm, and the area of the square is 49 cm^2.