Math, asked by dipakbhabha, 7 months ago

in figure ab parallel to CD and AD parallel to BC prove that triangle ADB is congruent to triangle CBD​

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Answered by paramjeet621
2

Answer:

extend EF to meet line CD, then the figure becomes a parallelogram. In a parallelogram, the opposite angles are always equal. => angle BEF = angle CDB = 100°.

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