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The area and perimeter of a trapezoid ABCD where AB=a, CD=b, BC=c, and angle ABC=θ | |
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The angle measures of a trapezoid ABCD where base AB=a, side BC=b, angle ABC=θ and angle DAB=φ | |
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The equations of the diagonals of a trapezoid ABCD where the equations of the lines AB, BC, CD, and DA are known | |
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