Math, asked by manak4manakian, 17 days ago

please solve this please..

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Answered by bsprabhav07

Answer:

Step-by-step explanation:

Angle ECD + Angle FEC =180. They are Co interior angles and sum is 180.So,EF parallel to CD. We know AB parallel to CD and EF parallel to CD which means AB parallel to EF.

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please solve this please..