Question

Периметр квадрата равен а)11 см б)17 см в)21 см. найдите длину его стороны

Answer 1

P=4a
11:4=2,75 см
17:4=4,25 см
21:4= 5,25 см

Answer 2

Perimeter of a Square

To find the length of a side of a square given its perimeter, we can divide the perimeter by 4 since all sides of a square are equal in length.

Let's calculate the length of the side for each given perimeter:

a) Perimeter = 11 cm - Length of each side = Perimeter / 4 = 11 cm / 4 = 2.75 cm b) Perimeter = 17 cm - Length of each side = Perimeter / 4 = 17 cm / 4 = 4.25 cm c) Perimeter = 21 cm - Length of each side = Perimeter / 4 = 21 cm / 4 = 5.25 cm Therefore, the length of the side of the square is: a) 2.75 cm b) 4.25 cm c) 5.25 cm