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​