4. What angle is formed when an inscribed angle of a circle intercepts a semicircle? A acute Bright C. obtuse D. straight 5. What is the relationship of the ineasure of the central angle to the measure of its intercepted arc? A half B.equal C. twice D.straight
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4. What angle is formed when an inscribed angle of a circle intercepts a semicircle? A acute Bright C. obtuse D. straight
Answer:
4. B. right
Theorem 72: If an inscribed angle intercepts a semicircle, then its measure is 90°.
5. B. equal
The angle measure of the central angle is congruent to the measure of the intercepted arc which is an important fact when finding missing arcs or central angles.
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