

The area and perimeter of a trapezoid ABCD where AB=a, CD=b, BC=c, and angle ABC=θ



The angle measures of a trapezoid ABCD where base AB=a, side BC=b, angle ABC=θ and angle DAB=φ



The equations of the diagonals of a trapezoid ABCD where the equations of the lines AB, BC, CD, and DA are known



