Which lines are perpendicular to each other?
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Which lines are perpendicular to each other?
Let's remember that perpendicular lines are vertical lines that create a 90-degree angle with each other.
To examine the types of angles that lines create with each other, let's draw a T at the intersection point of the lines in the following way:
Note that in drawings 1+4 we see right angles, meaning the lines are perpendicular to each other.
In the other drawings, the angles created are greater or smaller than 90 degrees, therefore the lines are not perpendicular.
1 and 4
What do the four figures have in common?
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