CBSE Class 7 Mathematics Question 2 of 6

Parallel and Intersecting Lines — Question 2

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2
Question
In the given figure, mark the parallel lines using the notation given above (single arrow, double arrow, etc). Mark the angle between perpendicular lines with a square symbol. (a) How did you spot the perpendicular lines? (b) How did you spot the parallel lines?
Answer

(a) To spot perpendicular lines in a geometric figure, observe if lines intersect at a 90° angle. (b) To spot parallel lines in a geometric figure, observe if lines never intersect at any point.