Answer:

Step-by-step explanation:
Assuming that the patio is a rectangle, we have

Where
is the length and
is the width.
Now let's assume that the length of the patio is double than the width.

So, the equation that represents this problem is

Answer: Infinitely Many Solutions
Step-by-step explanation is below.
Answer:
Irrational: √2 = 1.4
Step-by-step explanation: