Identifying Tangents and Secants

Which line is a secant?

A tangent intersects a circle:

• at only one point

• at two points

• at many points

• at the center

What is the definition of a tangent?

• A line that intersects the circle on two points.

• A line that passes through the center of the circle.

• A line segment that passes through the center of the circle.

• A line that intersects the circle on only one point.

Name a secant of the circle.

Using the circle with center O, identify a secant.

• MN

• EC

• OC

• DF

What type of segments are being shown?

• secant

• tangent

• both

Which of these is a tangent line to the circle?

• Line l

• AB

• SC

• CD

A tangent to a circle is ________________________ to the radius drawn to the point of tangency.

• congruent

• perpendicular

• complimentary

• supplementary

A tangent intersects the circle at:

• One point

• Two distinct point

• Never intersects

• None of the above

What is a tangent?

• A line that intersects the circumference at 2 points.

• A line segment that touches only 1 point on the circumference.