Pearson Geometry Common Core, 2011
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Pearson Geometry Common Core, 2011 View details
Chapter Review
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Exercise 2 Page 70

What do we call lines that intersect to form right angles?

Perpendicular line

Practice makes perfect
Let's sketch the situation described in the problem!

As we can see, these lines intersect to form right angles. In other words we can say that these are perpendicular lines.