Identifying Chords Secants and Tangents

What is line AB in the image?

(a)  

Which segment is a chord?

If DE is a chord, what do we think the definition of a chord is?

• the same as a radius

• the same as a diameter

• a line segment connecting two points on the circumference of a circle

• a line segment with one point on the circumference and the other point at the center

Which is secant?

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.

Segments with endpoints on a circle are called _____.

• arcs

• radii

• chords

• polygons

Name a chord segment.

• Segment XC

• Line LM

• Segment HJ

• Line BD

How do you know this is a chord?

• It connects the center to a point on the outside of the circle.

• It connects two points on the outside of the circle and travels through the center.

• It connects two points on the outside of a circle.

• It traces the outside (perimeter) of the circle.