Question

The lines that contain the altitudes of a triangle are _____

parallel.
concurrent.
congruent.

Answer 1

The answer is Concurrent

Answer 2

The lines that contain the altitudes of a triangle are concurrent

Three or more straight lines are said to be ‘concurrent’ if they all pass through a common point.

This common point is called ‘point of concurrency’

The point where the three altitudes meet is the orthocenter these lines associated with a triangle are concurrent as well.

hope it helps