Answers for the 2nd and 4th questions.
With steps.
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For 4th question,
By using converse mid point theorem in triangle DAB,
We can say that PQ = AB/2
Similarly QR = CD/2
PQ + QR = AB/2 + CD/2
PR = (AB + CD)/2
For 2nd second question use SAS congruence to prove all the sides are equal
By using converse mid point theorem in triangle DAB,
We can say that PQ = AB/2
Similarly QR = CD/2
PQ + QR = AB/2 + CD/2
PR = (AB + CD)/2
For 2nd second question use SAS congruence to prove all the sides are equal
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