(2008? As shown in Figure 1, the edge of a rectangular carpet is inlaid with patterns of the same width. As shown in Figure ②, the rectangular pattern in the center of the carpet is 6 meters long and 3 meters wide.
Let the width of lace be x meters,
(2x+6)(2x+3)=40，
The solution is x 1= 1, x2=- 1 12,
X2=- 1 12 doesn't matter.
Answer: The width of lace is 1 meter.