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Question Video: Identifying Parallel lines Mathematics • 4th Grade

Which lines are parallel in the figure?

01:08

Video Transcript

Which lines are parallel in the figure?

What do we know about parallel lines? Parallel lines are always the same distance apart and never intersect. If you look at line 𝐸𝐹, it intersects line 𝐴𝐢 and line 𝐡𝐷. We know that line 𝐸𝐹 cannot be parallel to line 𝐴𝐢 or line 𝐡𝐷.

If we look closely at line 𝐴𝐢 and line 𝐡𝐷, at all points, they are at the same distance from each other. And they never intersect. We can say line 𝐷𝐡 and line 𝐢𝐴 are parallel.

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