9.4. Chords in Circles http://www.ck12.org
15.
- FindmAB̂in Question 10. Round your answer to the nearest tenth of a degree.
- FindmAB̂in Question 15. Round your answer to the nearest tenth of a degree.
In problems 18-20, what can you conclude about the picture? State a theorem that justifies your answer. You may
assume thatAis the center of the circle.
18.
19.
20.
- Find the measure ofAB̂in each diagram below.
a.