From the given diagram, what can be said about ∆ADB and ∆BCD?

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Class 9 Maths Practice Test: Quadrilaterals - Properties of a Parallelogram — practice the complete quiz, review flashcards, or try a random question.

The opposite sides are parallel and equal. The opposite angles are equal. The consecutive or adjacent angles are supplementary. If any one of the angles is a right angle, then all the other angles will be at right angle.


From the given diagram, what can be said about ∆ADB and ∆BCD?<br><img src='https://www.fatskills.com/class9maths/mathematics-questions-answers-properties-parallelogram-2-q3.png' width='248' height='164' />