
Make a list of where you see perpendicular line segments in the world around you.
Draw line segment AB of length 6 cm. Use a ruler to draw a line segment perpendicular to AB.
**This will need to be done in EasyChalk***
Draw line segment EF of length 10 cm. Use a ruler and protractor to draw a line segment perpendicular to EF.
**This will need to be done in EasyChalk***
Find as many pairs of perpendicular line segments as you can. How do you know they are perpendicular?
