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Mathematics 4 Online
OpenStudy (anonymous):

(HELP FOR MEDAL!!) Quadrilateral ABCD is a trapezoid with AB || CD. What must be shown to prove that ABCD is an isosceles trapezoid? A.The base angles are congruent. B.The opposite angles are congruent. C.The diagonals are perpendicular. D.AD || BC

OpenStudy (anonymous):

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