proving tangent, secant

Which of the following line segments intersects a circle at exactly two points?

• A. line

• B. ray

• C. secant

• D. tangent

How many pairs of common tangents can be drawn from the circles in the figure below?

• A. 1

• B. 2

• C. 3

• D. 4

If AC = 20 cm, then what is the length of BC?

• A. 5 cm

• B. 10 cm

• C. 15 cm

• D. 20 cm

Given the figure below, what is the measure of angle BAC if arc BC = 100⁰ and arc EF= 20⁰?

• A. 20⁰

• B. 30⁰

• C. 40⁰

• D. 50⁰

Which of the following arcs is an intercepted arc of ∠𝐸𝐹𝐴?

• A. arc EA

• B. arc AGB

• C. arc BG

• D. arc BEA

In the figure which of the following represents a tangent?

• A. line BC

• B. line AB

• C. line EC

• D. line FC

In the figure which of the following represents a secant?

• A. line BC

• B. line AB

• C. line EC

• D. line FC

For items 8-9 use the figure,what is the measure of angle EAY if arc EY= 76⁰ and arc PC=146⁰? What is the measure of angle YAC?

• A. 35⁰ and 145⁰

• B. 70⁰ and 110⁰

• C. 111⁰ and 69⁰

• D. 222⁰ and 42⁰

Given the figure below, what is the measure of segment ML, if segment KL= 20 and segment NL=5?

• A. 5

• B. 10

• C. 12

• D. 15