No diagram has been given in the question.

MQR=MRQ=180-124=56° in isosceles triangle QMR (MQ=MR).

QMR=180-56-56=68°.

QMN=124° (alternate interior angles between parallel lines)

LMQ=RMN=MRQ=56° (alternate interior angles between parallel lines)

The positions of x and y are not given in the question, so all visible angles have been calculated.

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