Secant and Tangent Lines in a Circle

Line PQ and Line RQ are examples of

• Secant Lines

• Tangent Lines

• Outside Lines

• Tangerine Lines

Line AB is a

• Diameter

• Secant Line

• Tangent Line

• Radius

Is line AB tangent to the circle?

• YES

• NO
  NO

• Can't Tell
  Can't Tell

Assume that the lines that appear to be tangent are tangent. O is the center of the circle. Find the value of x to the nearest tenth.

• 11.7

• 10.8

• 13.0

• 14.2

What is the value of x?

• A

• B

• C

• D

What is the value of x?

• 22

• 25

• 15

• 20

In the diagram, a tangent and a line drawn to the point of tangency form a right triangle. Solve for "?" (the length of the hypotenuse)

• 15

• 6

• -24

• 14

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

Solve for x. (Hint: Length of Tangent Lines from the Same External Point)

• 42.4

• 52

• 52.3

• 42

Match the following vocabulary term with its appropriate part of the circle.

• Semi-Circle

• Point V

• Point of Tangency

• Secant Line

• Major Arc

• Line PR

• Minor Arc