Tangents to a Circle Review

A tangent line intersects the circle ...

• in exactly two points

• in exactly one point

• through the center

• with the diameter

Name a tangent.

• Segment XC
• Segment LM
• Segment HJ
• LINE BD

Which shows a tangent line?

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• 
• 
• 

Which shows a tangent line?

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• 
• 
• 

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

• parallel

• adjacent

• supplementary

• perpendicular

If two segments from the same external point are tangent to a circle, then they are______.

• Supplementary

• Congruent

• Complimentary

Determine if a tangent line is shown in the picture.

• Yes

• No

• Not Sure

Determine if a tangent line is shown in the picture.

• Yes

• No

• Not sure

Assume that the lines that appear to be tangent are tangent. O is the center of the circle. Find the value of x to the nearest tenth.

• 11.7

• 10.8

• 13.0

• 14.2

Assume that the lines that appear to be tangent are tangent. O is the center of the circle. Find the value of x to the nearest tenth.

• 4.1

• 5.8

• 4.7

• 3.6