Area of square = (length)²
OR

Answer:
25 mm^2
Step-by-step explanation:
Because the sides of a square are all equal, that means the length = 5 and the width = 5.
To find the area, you do length * width so for this square it would be 5 * 5 = 25.
Answer: 5
Step-by-step explanation: 6/7+ 6 each = 12/13