Math 10_Q2_Mod.6: Theorems on Secants, Tangents, and Segments

1.     What do you call a region in the circle bounded by two radii and the minor arc? 

2.     What do you call a line that intersects a circleat exactly two points? 

3.     What do you call a line that intersects a circle at exactly one point? 

4.     What do you call a line that is perpendicular to the radius drawn to the point of contact?

5.     If a secant and a tangent intersect at the point of tangency, then the measure of each angle formed is ____________ the measure of its intercepted arc.

6.     If a line is a tangent to a circle, then it is perpendicular to the ________ drawn to the point of tangency.

7.     If two _____________ intersect in the interior of a circle, then the measure of an angle is half the sum of the measure of the arcs intercepted by the angles and its vertical angle.

8.     If two secants, and a tangent, or two tangents intersect in the exterior of a circle, then the measure of the angle formed is one-half the ___________ of the measure of the intercepted arc.

9.     If two segments from the same exterior point are tangent to a circle, then they are ______________.

10.     If a line is ______________ to a radius of acircle at its endpoint on the circle, then the line is tangent to the circle.