Question 65766
ASSUMING LINE MR IS A STRAIGHT LINE & MN//BU THEN <1=<NME.
ANGLES 1 & ANGLE BRU ARE EQUAL (RIGHT ANGLES).
NOW WE HAVE 2 ANGLES AND A SIDE THAT ARE EQUAL THEREFORE THE TRIANGLES ARE EQUAL. THUS NE=UR & ME=BR & <MNE=<BUR
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