- You design a tree house using a coordinate plane. You plot the vertices of the floor at J(2,1), K(2,8), L(9,8), and M(9,1). The coordinates are measured in teet. K(2.8) L(9,8) 8 7 6 5 4 3 2. 1 12, 1) 0 0 1 2 3 M(9.1) 5 6 7 8 9 X a. Which best describes the shape of the floor? 17 O triangle square trapezoid O A rectangle having a length one foot longer than its width. O A rectangle having a length two feet longer than its width. b. What are the perimeter and the area of the floor? Perimeter: ft Area: f12