1. What is an angle whose vertex is on a circle and whose sides contain chords of the circle?
A. central angle
B. inscribed angle
C. circumscribed 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 C. circumscribed angle D. intercepted angle arc?
A. 2.62 cm
B. 2.3 cm
C. 1.86 cm
D. 1.5 cm

3. The opposite angles of a quadrilateral inscribed in a circle are
A. right
B. obtuse
C. complementary
D. supplementary
4. What is the sum of the measures of the central angles of a circle with no common interior points?
A. 120
B. 240
C. 360
D. 480
5.A is a round plane figure whose boundary (the circumference) consists of points equidistant from a fixed point (the center).
A. Polygon
B. Arc
C. Chord
D. Circle
6. A of a circle is the region bounded by an arc and the segment joining its endpoint.
A. Segment of a circle
B. Arc of a circle
C. Sector of a circle
D. Chord of a circle
7. A of a circle is the region bounded by an arc of the circle and the two radii to the endpoints of the arc
. A. Segment of a circle
B. Arc of a circle
C. Sector of a circle
D. Chord of a circle

8. A to a circle is a line coplanar with the circle and intersects it in one and only one point.

B. Secant line
C. Vertical line
A. Tangent line
D. Horizontal line

9. A is a line that intersects a circle at exactly two points.
B. Secant line
C. Vertical line
A. Tangent line
D. Horizontal line

10.A is a line that is tangent to two circles in the same plane.
A. Common tangent
B. Secant line
C. Common Secant
D. Diameter​