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Mathematics 20 Online
OpenStudy (anonymous):

T

ganeshie8 (ganeshie8):

Triangles ABD and CDB are congruent by ASA postulate.

ganeshie8 (ganeshie8):

its ASA : he used parallel sides and the diagonal transversal to figure out TWO ANGLES are congruent. and the middle SIDE is congruent by reflexive property.

ganeshie8 (ganeshie8):

thank you... yw yw :))

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