Approximate the acute angle 
to the nearest 
. 
Definitions:
Anecdotally
Referring to information that is provided through personal stories or observations rather than through scientific analysis or hard evidence.
Sample Frame
The list or database from which a sample is drawn for research or statistical analysis, representing the population of interest.
Population
The total number of individuals within a specified area or group, often used in statistics and research.
Sample
A subset of a population selected for measurement, observation, or questioning to provide statistical information about the population.
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