Question

what are concurrent lines

Answer 1

If there are more than two lines and all the lines intersect each line intersect at a single point then these lines are said to be concurrent.
And the point of intersection is said to be point of concurrence.
See the pic in the attachment.

Hope it helps.... :-)

Answer 2

If two or more lines intersect at a common point then these line are said to be concurrent lines. And the point of intersection is called the point of concurrence.

Wish u a Happy Ending Day.