Geometry
Question

is tangent to the circle at E. is tangent to the circle at G. The value of x is _______°.
Answer & Analysis
Analysis
Question Analysis
The main focus is to use the Outside Angle Theorem for angles formed by two tangents from an external point to a circle. We need to set up an equation based on the relationship between the given angle and the intercepted arcs to solve for .
Key Concept Explanation
Outside Angle Theorem for Two Tangents: When two tangents are drawn from an external point to a circle, the measure of the angle formed is half the difference of the measures of the intercepted arcs. The sum of the measures of the major and minor intercepted arcs is . If the angle is , the major arc is , and the minor arc is , then , where , so .
Step - by - Step Solution
1. Apply the Outside Angle Theorem:
Let the major arc , then the minor arc .
According to the theorem,
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