To trim the edges of a rectangular table cloth, 30 feet of lace are needed. The length of the table cloth is exactly one-half its width. What are the dimensions of the table cloth?
◦ length: 10 ft; width: 5 ft
◦ length: 2

ft; width: 5 ft
◦ length: 10 ft; width: 20 ft
◦ length: 5 ft; width: 10 ft