Concept explainers
Interpretation:
The length of the paper clip needs to be determined to appropriate number of significant digits.
Concept introduction:
The meaningful representation of the numbers is known as significant figures.
Answer to Problem 8STP
The length of the paper clip is
The correct option is A.
Explanation of Solution
In the given scale; the division of 0.1 cm is equal to 1 mm.
Thus, the conversion factor used to convert cm to mm is as follows:
The representation on the scale is shown below:
Now the clip length is 3.1 cm. This can be converted to mm as follows:
Thus, the correct length is 31 mm that is option (A).
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