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1. What is an angle whose vertex is on a circle and whose sides contain chords of the circle? A. central angle 0. circumscribed angle B. inscribed angle D. intercepted angle 2. An arc of a circle measures 30\". If the radius of the circle is 5 cm, what is the length of the arc? A. 2.32 cm B. 2.3 cm {3.1.36 cm D.1.5cm 3. Using the gure at the right. which of the following is an external secant segment of Circle M? A. CD B. ND C. Tl D. NI 4. The opposite angles of a quadrilateral inscribed in a circle are . A. Right El. Dbtuse C. Complementary D. Supplementary 5. What is the sum of the measures of the central angles of a circle with no common interior points? A. 12D B. 240 C. 360 D. 480 ii. Catherine designed a pendant. It is a regular hexagon set in a circle. Suppose the opposite vertices are connected by line segments and meet at the center of the circle. What is the measure of each angle formed at the center? A22 5. 3.45 {3.60 D12 V T. In Circle 3, at the right. what is mLVSI if m 4W = 140'? A. 35 B. T5 C. 140 D. 230 S. If an inscribed angie of a circle intercepts a semicircle, then the angle is . A. acute B. right C. obtuse D. straight 9. At a given point on the circle, how many liners can be drawn that is tangent to the circle? A. one B. two C. three D. four 10. What is the length of 2K in the gure on the right? 4 A. 2.86 units B. 3 units C. 6 units D. 8.25 units ' D