Secant and Tangent Lines in Circles

Line segment AB is tangent to circle C. What is the radius of the circle?

• 11

• 15

• 10

• 8

Is line segment AB tangent to the circle?

• Yes

• No

A line that intersects a circle at 2 points is a ...

• Tangent

• Chord

• Diameter

• Secant

Line segment AB and line segment AD are both tangent to circle C. What is the value of x?

• 4.5

• 5

• 5.5

• 6

Using the secant property of a circle, find the value of x.

• 3.75

• 6

• 2.4

• 2

Solve for x. 

• 7.94

• 8

• 10.58

• 112

• A
• B
• C
• D

Find the value of x.

• 10

• 181

• 34

• 40

Where in the intersection of the secants shown?

• Inside the circle

• Outside the circle

• On the circle

• The secants do not intersect.

Where in the intersection of the lines shown?

• Inside the circle

• Outside the circle

• On the circle

• The secants do not intersect.