Identify any four lines

Hint: A line is a line which doesn’t have any curve. To find out the line from a given figure, we need to check the line which doesn’t have any curve.

Complete step-by-step answer:
According to question, for finding out any line, we need to see in figure for below mentioned points:
1) It shouldn’t be one dimensional.
2) It can be vertical, horizontal or diagonal.
3) It should make a 180-degree angle when drawing an angle arc from one point to another on it.
If we see the above properties, then any four lines can be AB, CD, MN and PQ.

Note: Here, few more lines exist such as XY, EF, GH, MP etc. These also follow the above properties. The line should not have any curve or any extension that is not straight. Hence when we see the above properties, we can easily find out the lines from any figure.