10.3- Tangent Lines on Circles

A line segment that connects the center of a circle to any point on the circle is called ...

• Diameter

• Radius

• Chord

• Secant

Line segment AB is tangent to the circle.

• True

• False

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

• 11

• 15

• 10

• 8

A tangent line to a circle ...

• Touches the circle in two places.

• Passes through the center of the circle.

• Makes a 90 degree angle with the radius of the circle.

• None of the above.

Line segment AB and AD are both tangent to circle C. Find x.

• 2

• 3

• 4

• 5

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

• 3.75

• 4.25

• 3.25

• 3.5

Is line segment AB tangent to the circle?

• Yes

• No

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

The radius of a circle is

• The measurement from the center of a circle to an edge of the circle.
• The measurement around the circle
• The measurement from and edge of the circle to another edge through the center
• A line perpendicular to the diameter of the circle

Which best describes segment AB?

• chord
• secant
• tangent
• diameter