Secant Lines and Circles

A tangent to a circle ____________ the radius drawn to the point of tangency.

• is parallel to

• is perpendicular to

• is congruent to

• is double

What is the measure of angle 2?

• 80
• 45
• 125
• 40

Tags

CCSS.HSG.C.A.2

Given two secants, solve for x.

• 10°
• 20°
• 30°
• 40°

Tags

CCSS.HSG.C.A.2

What is the value of x?

• 58

• 119

• 61

• 90

Tags

CCSS.HSG.C.A.2

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.

• Secant

• Tangent

• Chord

• Point of Tangency



$\overline{AC}$ is a...

• Secant

• Tangent

• Chord

• Point of Tangency

What is the measure of angle 2?

• 80
• 45
• 125
• 40

Tags

CCSS.HSG.C.A.2

∠ ABD is formed by a tangent and a secant intersecting outside of a circle. If minor arc AC = 72° and minor arc CD = 132° , what is the measure of ∠ ABD?

• 30°

• 36°

• 42°

• 48°

Tags

CCSS.HSG.C.A.2

How many point/s does a line and a circle have in common if the line is tangent to the circle?

• Infinite

• one

• two

• three