Question

In in quadrillateral AB CD, AB|| DC and Bc.
prove that LDAB = LBCD and LABC = LADC




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Answer 1

Its prove is very easy you can see in RD sharma

Answer 2

Step-by-step explanation:

It's given that AB||DC and Equal to BC

(as per you question the AB can't be parallel to BC because they are interesting at point B so it can be equal)

So, BC||AD because it's a parallelogram. And also the adjacent angles are equal

so angle(DAB)=angle(BCD) and

angle(ABC)=angle(ADC)

Hence Proved

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