Question

plzzz solve these guys plzz fast

Answer 1

Given that :-
AQBC is a parallelogram.
ABCR is a parallelogram.

To prove :-
BC is 1/2 RQ.

Proof:-

As shown in the attachment :-

AQBC is parallelogram.
Thus,
BC = AQ (opposite side of a parallelogram is equal.)

Similarly,
ABCR is a parallelogram.
Thus,
BC = AR

So,
From above two points :-

BC +BC = AQ + AR
Or,
2BC = RQ
Or,
BC = 1/2 RQ


Hence, proved


Thanks!