To find: find the measure of numbered
Answer to Problem 12WE
The measure of angle
Explanation of Solution
Given information: we have given
We can see from the figure
Also
As we know
The measure of an angle formed by the two chords that intersect inside a circle is equal to half the sum of the measures of the intercepted arcs.
Therefore from given figure we must have
Therefore, the measure of the angle
Chapter 9 Solutions
McDougal Littell Jurgensen Geometry: Student Edition Geometry
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