Perimeter of the square backyard=56m
Perimeter of a square=4*side
Side=
56=4*side
56/4=side
side=14 cm
Area of a square=side*side
=14*14
=196cm^2
So,the area of the square backyard is 196m^2.
Answer:

Step-by-step explanation:
we have

Group terms that contain the same variable, and move the constant to the opposite side of the equation

Complete the square. Remember to balance the equation by adding the same constants to each side.



Rewrite as perfect squares

Take square root both sides

Adds 5 both sides

Answer:
13/3
Step-by-step explanation:
5 2/3=17/3
10-17/3
30/3-17/3
13/3