Question 1084953
Let w be the width of the strip. Then the dimensions of the rug would be 19-2w and 18-2w. So:
(19-2w)(18-2w)=210
342-74w+4w²=210
4w²-74w+132=0
(2w-33)(2w-4)=0
w=33/2 or 2
A width of 2 ft for the strip gives rug dimensions of 15 ft. x 14 ft. ☺☺☺☺