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Question

Why do we need a divider to compare the lengths of line segments, when we can use the ruler for the same purpose?


A

As ruler is not always available.

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B

Ruler may not give exact reading.

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C

Ruler does not have two ends.

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D

Insufficient data.

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Solution

The correct option is B

Ruler may not give exact reading.


We can compare the length of line segments with the help of the ruler; however comparing the lengths with ruler may not give exact readings. Generally, this type of error is called positioning error. Thus, to avoid these errors it is advised to use a divider.


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