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EUCLIDEAN GEOMETRY Let □ABCD be a quadrilateral on a surface satisfying the five axioms. Assume that...

EUCLIDEAN GEOMETRY

  1. Let □ABCD be a quadrilateral on a surface satisfying the five axioms.
    Assume that m∠ABC = m∠BCD = 90, and that the rays BA and CD are on the same side of the line BC.
    1. Prove that if If m∠CDA = m∠DAB, then mAB = mCD. (Hint: This proof is very similar to angle side inequality , replace isoscles triangles with khyyam quadilateral )
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