How_To_Be_Good_At_Math

211

Horizontal and vertical lines are perpendicular to

each other

Lines that make a right angle when they intersect are

perpendicular

Any two lines that meet

and make a right angle

are perpendicular to each other. Perpendicular lines don’t have

to be horizontal and vertical.

Two lines are also perpendicular when they cross each other, or

intersect, at a right angle.

Can you find more examples of all three kinds of perpendicular

lines in the picture?

These diagonal

lines meet to form

a right angle

Intersecting

lines form

Angles

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210_211_Perpendicular_lines.indd 211 29/02/2016 18:04