Math Problem Statement
Solution
This problem involves a circle with intersecting lines, and we need to find the value of angle .
Step-by-step solution:
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Identify the key angles:
- There is an inscribed angle of , adjacent to the angle .
- An external angle is also given.
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Recall the relationship between an exterior angle and the intercepted arc: The exterior angle theorem states that the exterior angle of a circle is equal to half the difference of the intercepted arcs.
Specifically: In this case, the angle is the exterior angle to the arc, so:
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Calculate :
So, the value of is 53 degrees.
Would you like further clarification or details? Here are some related questions to expand on this:
- What is the exterior angle theorem and how does it apply to circles?
- How do we calculate the sum of opposite angles in a cyclic quadrilateral?
- What are inscribed and central angles in a circle, and how do they relate?
- How do intercepted arcs affect the calculation of angles in a circle?
- Can the exterior angle of a triangle be applied similarly in circle problems?
Tip: When solving circle geometry problems, look for relationships between angles, arcs, and lines, as these often help simplify complex configurations.
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Math Problem Analysis
Mathematical Concepts
Circle Geometry
Angles in Circles
Formulas
Exterior Angle = 1/2 (Larger Arc - Smaller Arc)
Theorems
Exterior Angle Theorem
Inscribed Angle Theorem
Suitable Grade Level
Grades 8-10
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