[ATTACH=full]3727[/ATTACH]

given: PQ perpendicular to MN m< 1 = < 2 prove: triangle PQR is congruent to triangle NQP statement.......................................reason 1. PQ perpendicular to MN .............given 2. m< 1 = < 2 ..................................given 3. MQ=QN...............across equal angles lie equal sides 4. QP=QP............ ......common side 5.MP=NP.......................if two sides are equal (see 3 and 4), third sides are equal too 6. ∆ MPQ = ∆ NQP .............................SSS