
Concept explainers
The measure arc mEF.

Answer to Problem 48PPS
The measure of arc mEF is 52.
Explanation of Solution
Given:
The given figure is:
Calculation:
The
Therefore, the value of x is 19.
Now,the sum of angles
Finding
Arc mEF is equal to the measure of the central angle ECF. Therefore, the measure of arc mEFis 52.
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