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Question
Why is it better to use a divider than a ruler, while measuring the length of a line segment?
Solution
It is better to use a divider than a ruler because while using a ruler, positioning errors may occur due to the incorrect positioning of the eye.
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RELATED QUESTIONS
Measure the following line segments.
From the given figure, name
(i) all pairs of parallel lines.
(ii) all pairs of intersecting lines.
(iii) pair of lines whose point of intersection is ‘V’.
(iv) point of intersection of the lines ‘l2‘ and ‘l3‘.
(v) point of intersection of the lines ‘l1‘, and ‘l5‘ 
Find the type of lines marked in thick lines
Find the parallel and intersecting line segments in the picture given below.
Think and write an object having
- Parallel lines (1) __________ (2) __________ (3) __________
- Perpendicular lines (1) __________ (2) __________ (3) __________
- Intersecting lines (1) __________ (2) __________ (3) __________
What is the disadvantage of comparing line segments by mere observation?
Draw any line segment, say `overline"AB"`. Take any point C lying in between A and B. Measure the lengths of AB, BC, and AC. Is AB = AC + CB?
[Note: If A, B, and C are any three points on a line such that AC + CB = AB, then we can be sure that C lies between A and B.]
If A, B, and C are three points on a line such that AB = 5 cm, BC = 3 cm, and AC = 8 cm, which one of them lies between the other two?
Verify, whether D is the midpoint of `overline"AG"`.
If B is the midpoint of `overline"AC"` and C is the midpoint of `overline"BD"`, where A, B, C, and D lie on a straight line, say why AB = CD?
