Elementary Geometry for College Students (7th Edition)

Published by Cengage
ISBN 10: 978-1-337-61408-5
ISBN 13: 978-1-33761-408-5

Chapter 6 - Section 6.2 - More Angle Measures in the Circle - Exercises - Page 295: 21


2. When a pair of two tangent lines intersect an arc, the measure where these lines intersect is equal to half of the measure of the arc that is intersected. 3. Transitive property (substitution also is a valid answer.) 4. Definition of congruent angles. 5. CA and AB are congruent. 6. Triangle ABC is isosceles.
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