The length between 12.8 cm and 12.9 cm is a very small interval, specifically 0.1 cm (or 1 millimeter).
To break it down:
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12.8 cm: This is the starting point of the interval.
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12.9 cm: This is the endpoint of the interval.
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Length of the interval: To find the length, subtract the starting point from the endpoint:
\[ 12.9 , \text{cm} - 12.8 , \text{cm} = 0.1 , \text{cm} \]
This means that any measurement or value within this range will be greater than or equal to 12.8 cm and less than or equal to 12.9 cm. Some examples of values within this interval are 12.85 cm, 12.81 cm, and 12.88 cm.
In practical terms, this small range can represent a very minor variation in measurement, which can be significant in precise fields such as science, engineering, or manufacturing.
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