tangent line

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

Name the tangent line. 

• s
• WR
• VT
• QR

Name the chord(s).

• VT
• WR
• VT and WR
• s

Which number best represents a central angle?

• 1
• 2
• 5
• 9

A tangent line intersecting with a radius always creates a ____________ angle

• right
• acute
• obtuse
• straight

What is the relationship between a central angle and its arc?

• The angle is half of the arc.

• The arc is half of the angle.

• The arc is smaller than the angle.

• They are congruent.

Find the radius r

• 2
• 3
• 4
• 5