geometry- is this right?

The question is a true and false.

Two concurrent lines can never be perpendicular.

Concurrent lines I thought were three or more lines that intersected at the same point. I think this is true because a perpendicular line has to intersect at a point that makes the angle ninety degrees.

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  1. False
    Here is a picture of concurrent lines

    http://www.onemathematicalcat.org/Math/Geometry_obj/graphics/concurrent_lines.png

    concurrent - from the Latin, curro - to run
    con or (com) - together or with

    why can't they meet at 90° ?

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