Two parallel railway tracks are crossed by a straight overhead signal wire
MATHEMATICS · Subjective · CBSE · Mathematics · Lines and Angles · Lines and Angles
Problem
Two parallel railway tracks are crossed by a straight overhead signal wire. The angle between the wire and the first track, measured outside the region between the tracks, is 42∘. Find the measure of the angle between the wire and the second track that lies between the two tracks on the same side of the wire.