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° ?
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.
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° ?
Concurrent lines, as you correctly stated, are three or more lines that intersect at the same point. They all pass through a common point of intersection. So, when the statement refers to "two concurrent lines," it may be a misnomer as, by definition, concurrent lines involve more than two lines.
On the other hand, perpendicular lines are two lines that intersect at a right angle, forming 90-degree angles between them. In other words, the intersection of perpendicular lines creates four 90-degree angles.
Based on the given information, we can conclude that the statement is true. Two lines that intersect at a common point (concurrent lines) cannot be perpendicular because perpendicular lines form right angles, not a common point of intersection.