1.) The base is 4ft and 7 ft
The height is 15 ft
2.) The length of the base and the height
3.) 2l + 2w does not belong with the other three since it is a formula for the perimeter of a rectangle while the others are formula for finding the area
4.) area for the trapezoid is 12 un2
5.) area for the trapezoid is 24 un2
6.) the area of the trapezoid is 27 un2