Secant Lines and Angles

What is the measure of <B?

• ∠B=77°

• ∠B=103°

• ∠B=180°

• ∠B=13°

A line that intersects a circle at 2 points is a ...

• Tangent

• Chord

• Diameter

• Secant

By definition, a secant is

• a line that intersects a circle at exactly one point.

• a segment that has both endpoints on the circle.

• a line that intersects a circle at exactly two points.

• a segment that passes through the center of the circle.

Find x

• 10

• 5

• 18

• 9

Where in the intersection of the lines shown?

• Inside the circle

• Outside the circle

• On the circle

• The secants do not intersect.

A secant is...

• Two parallel lines going through a circle

• A line going through the circle

• Three lines going through a circle

• A line that intersects a circle at two points

Where in the intersection of the secants shown?

• Inside the circle

• Outside the circle

• On the circle

• The secants do not intersect.

Where in the intersection of the secants shown?

• Inside the circle

• Outside the circle

• On the circle

• The secants do not intersect.

Where in the intersection of the secants shown?

• Inside the circle

• Outside the circle

• On the circle

• The secants do not intersect.