Solution
We can create the following plot:
Part 1
From this case we can see in the figure that the maxium number of circular rugs are 6
The total area is given by:
A= 12ft * 18 ft= 216 ft2
And the area for a single rug is:
Then the area for the 6 rugs is:
And rounding to the nearest square foot we got:
170 ft2
Part 2
The remaining space would be given by:
R= 216-170 ft2= 46ft