Question

In the given figure, prove that AB||CD.
Please tell the answer it is urgent .I will mark you brainliest who will answer me first .Please​

Answer 1

Step-by-step explanation:

angle BAD+ANGLE AEF =180°

But these are consecutive interior angles.

So AB||EF

Now, angle ECD=angleCEF =80°

But these are alternate interior angle.

So, CD||EF

Now AB||EF||CD

So, AB||CD

Hope it help you my friend

Answer 2

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