Question 10
Which pairs of lines appear to be parallel in Fig. 5.6 below?
Parallel lines are lines that never meet, no matter how far they are extended.
Step 1 — Understand Parallel Lines
We need to find parallel lines. Parallel lines always stay the same distance apart. They will never cross each other. Imagine two straight railway tracks. They are a good example of parallel lines.
Step 2 — Identify Parallel Lines in Fig. 5.6
We will look at the given figure. We check lines that run in the same direction. Lines that look like railway tracks are parallel. First, observe lines a, i, and h. They all run in the same direction. So, lines a, i, and h are parallel. Next, look at line c and line g. They also run in the same direction. So, lines c and g are parallel. Then, observe line d and line f. They appear to run in the same direction. So, lines d and f are parallel. Finally, look at line e and line b. They also appear to run in the same direction. So, lines e and b are parallel.
Answer
(i) Lines a, i, and h are parallel to each other. (ii) Line c is parallel to line g. (iii) Line d is parallel to line f. (iv) Line e is parallel to line b.
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