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Math
Geometry
Lines, Shape, and Measure in Geometry
Angle Measures
Identifying Perpendicular Lines
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Explanations
1
Perpendicular lines are lines intersecting at right angles, meaning that they create 90∘90^\circ90∘ angles at their intersection point.
By Freya Edholm
Problems
2
Are these lines perpendicular?
Which of the following pairs of lines are perpendicular? Mark all that apply.
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