An isosceles trapezoid garden is a garden shaped like an isosceles trapezoid, which has two parallel sides of equal length and two non-parallel sides of equal length. To design one, one must first determine the dimensions of the trapezoid, including the lengths of the parallel sides, the height, and the angles. The garden layout should consider the space available, the aesthetics of the trapezoid shape, and the functionality of the garden area, such as seating, planting beds, or pathways.