10.1 Lines & Segments in Circles

What is the difference between a tangent line and a secant line?

• A secant intersects the circle twice; a tangent touches the circle once

• A tangent intersects the circle twice; a secant touches the circle once

• A secant goes through the center of the circle; a tangent does not

• A secant is outside the circle; a tangent is inside the circle

Segment ST is called a ________

• Radius

• Chord

• Tangent Line

• Diameter

• Center

Segment QV is called a ________

• Radius

• Chord

• Tangent Line

• Diameter

• Center

Segment XW is called a ________

• Radius

• Chord

• Tangent Line

• Diameter

• Center

Line VU is called a ________

• Radius

• Point of Tangency

• Tangent Line

• Secant Line

• Center

Line PR is called a ________

• Radius

• Point of Tangency

• Tangent Line

• Secant Line

• Center

Point S is called a ________

• Radius

• Point of Tangency

• Tangent Line

• Secant Line

• Center

Point V is called a ________

• Radius

• Point of Tangency

• Tangent Line

• Secant Line

• Center

If 2 segments from the same external point are tangent to a circle, then they are_.

• Supplementary

• Complementary

• Congruent Segments

• Perpendicular Segments

Find the value of x.

• 3/2

• 6

• 12

• 20