To identify:
Given answer in simplest form in terms of given variable.
Answer to Problem 9WE
The average of three angles is
Explanation of Solution
Given information:
Angle of a quadrilateral measured is
Calculations:
One angle of a quadrilateral is given as
The average of the measure of the other three angles can be determined by dividing the sum of the other three angles by
Therefore, the average of three angles is
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Algebra and Trigonometry: Structure and Method, Book 2
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