Tangent Lines

Which shows a tangent line?

• 
• 
• 
• 

A tangent line intersects the circle ...

• at exactly two points

• at exactly one point

• through the center

• with the diameter

If a line is tangent to a circle, then it is ________ to the radius drawn to the point of tangency.

• parallel

• adjacent

• supplementary

• perpendicular

Match the following

• Chord

• 
• Secant

• 
• Tangent

• 
• Diameter

• 
• Radius

• 

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

Mathematical Equivalence

ON

What is the value of x?

Mathematical Equivalence

ON

Find x.  Assume that segments that appear to be   tangent are tangent.

• 11.2
• 18.0
• 25.0
• 30.0

Two tangents CD and CB intersect circle A. Find the length of the tangent segment BC.

Mathematical Equivalence

ON

Find x.  Assume that segments that appear to be   tangent are tangent.

Mathematical Equivalence

ON

Assume that all the lines that appear tangent are tangent. Find the perimeter

• 54
• 36
• 48
• 42