Secant Lines and Tangent Lines

What is the measure of the angle formed outside the circle by two tangents, two secants, or a secant and a tangent?

• Depends on the specific configuration of the lines

• Equal to the sum of the angles of a triangle

• Half the difference of the intercepted arcs.

• Always 90 degrees

What is the value of x?

• Cannot be determined

• x = 90 degrees

• x = 145 degrees

• x = 200 degrees

In the diagram, a tangent and a line drawn to the point of tangency form a right triangle. Solve for "?" (the length of the hypotenuse)

• 15

• 6

• -24

• 14

Name the secant(s).

• segment WR

• line VT

• s

• segment WR and line VT

Name the tangent line. 

• s

• WR

• VT

• QR

Lines AO and BO are tangent. What is the measure of BO?

• 20

• 15

• 10

• 5

What is the correct way to write the equation to solve for x?

• 12 x 4 = x

Find the radius r

• 2

• 3

• 4

• 5

Select all that apply. BT is a

• Chord

• Diameter

• Line

• Radius

Line AB is a

• Diameter

• Secant Line

• Tangent Line

• Radius