Solve this:
10.PQRS is a rectangle,A and B are points on side PQ and SR respectively such that BQ=AR. Show that AQ=BR and
angle AQR=angle BRQ (90 degrees), AR=BQ,QR ia common side so triangle BRQ is congruent to triangle ARQ by RHS test.AQ=BR and angle ARQ = angle BRQ because corresponding parts of congruent traingles are equal.