Secants and Tangents Lines to a Circle

Find the measure of the missing angle.

• 65º

• 115º

• 360º

• 180º

Determine the m∠VXW.

• A

• B

• C

• D

Secants are connecting (intersecting) lines that pass through the circle at two points each.

• True

• False

In the diagram, TP and TQ are tangents to circle O. Determine the value of x. (Note the angles with single arcs are not necessarily congruent in this diagram.)

• 70

• 110

• 140

• 90

Find m< T

• m< T = 35 deg

• m< T = 40 deg

• m< T = 55 deg

• m< T = 5 deg

What is x?

• 15

• 23

• 2

• 92

is a...

• Secant

• Tangent

• Chord

• Point of Tangency

What is in the picture?

• Two tangents

• Two Secants

• Two Chords

• One Secant and One Tangent

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.

What is the definition of a secant?

• A line segment whose endpoints are on the circle.

• A line that intersects a circle in one point.

• A line that intersects a circle in two points.

• A line segment which intersects the circle at the point of secancy.