Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10: 9781285195698
ISBN 13: 978-1-28519-569-8

Chapter 6 - Section 6.2 - More Angle Measures in the Circle - Exercises - Page 286: 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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