SOLUTION: Given AD= BC and AB = CD
Prove triangle CDB is congruent To triangle ABD
Algebra.Com
Question 1010570: Given AD= BC and AB = CD
Prove triangle CDB is congruent To triangle ABD
Answer by ikleyn(52798) (Show Source): You can put this solution on YOUR website!
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Given AD= BC and AB = CD
Prove triangle CDB is congruent To triangle ABD
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Apply SSS-test for triangles.
You can also look into the lesson Properties of the sides of a parallelogram in this site, Theorem 2:
If in a convex quadrilateral the opposite sides are of equal length by pairs, then the quadrilateral is a parallelogram.
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