In groups, go to one of the following places in your school and fi nd 3 examples of parallel lines. In your copy, sketch the objects in the boxes below and mark in the parallel lines using arrows. Don’t forget to bring your ruler. PE hall
School yard Perpendicular Lines
When a horizontal line meets a vertical line these lines are said to be perpendicular. The point at which they meet will always be a right angle.
Corridor Staff room
1. Circle the perpendicular lines in the pictures. Mark the right angles with an X. a) b) c)
d) e) f)
E
Drawing Perpendicular Lines You will need a set square and a sharp pencil.
Step 1: Draw a straight line in your copy. Step 2: Place the set square at the midway point on the line. Step 3: Draw a vertical line that passes through the horizontal line.
ne. Complete steps 1–3 in your copy. Lines and Angles 119