For nos. 11 – 15. Refer to the circle.____
11. Given: circle O, name the central angle
a. BOA b. ACD c. CDA d. CAD
____12. Name the diameter
a. AC b. AD c. OB d. DC
____13. What is the mBOC if m?
a. 125 b. 135 c. 155 d. 165
____14. How many inscribed angle does the circle have?
a. 4 b. 3 c. 2 d. 1
____15. What is the m∠ADC?
a. 30° d. 60° c.90° d. 180°
