Circles Radius, Diameter, Chord, Tangent, and Secant

What is the measure of angle 2?

• 80

• 45

• 125

• 40

Segments with endpoints on a circle are called _____.

• arcs

• radii

• chords

• polygons

Determine the measure of ∠UVS

• 19.5°

• 39°

• 78°

• 102°

Find the measure of arc NL

• 21°

• 42°

• 45°

• 84°

• Chord

• Secant

• Tangent

• Radii (radius)

Which best describes segment AB? (a)  

• chord

• secant

• tangent

• diameter

What is the point of tangency?

• The point where the tangent intersects a circle.

• The point where the tangent interssects the center of the circle.

• The point where the tangent intersects with another tangent.

• The point where the tangent intersects with a secant.

If two tangents are drawn to a circle from an external point, what is the relationship between these two tangents?

• They are congruent.

• They are perpendicular.

• They intersect at the center.

• They are parallel.

A secant is best described as which of the following?

• A line that touches the circle at one point.

• A segment with both endpoints on the circle and passes through the center.

• A line that intersects the circle in two points.

• A segment with both endpoints on the circle but does not pass through the center.

Find the measure of the arc or angle indicated. Assume that lines which appear tangent are tangent.

• 36

• 35

• 30

• 41