Answer:
100 un²
Step-by-step explanation:
If the rectangle represents 40 by 20, it means the rectangle area is 40 × 20 or 800.
Squares have the same 4 side lengths and we have 8 squares. To find the area of an individual square divide 800 by 8.
800 ÷ 8 = 100
100 un² is the area of a square.
--- Finding square side lengths ---
Let y represent the length of a side of a square.
y² is the formula for square area, set it equal to the area of one squares' area.
y² = 100
√y² = √100
y = 10
The side length of one square is 10 un.
