Circle Basics and Tangents

• 278⁰
• 297⁰
• 90⁰
• 105⁰

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

is a...

• Secant

• Tangent

• Chord

• Point of Tangency

Match the following part of the circle with its correct label.

• Chord

• Radius

• Diameter

• Point S

• Tangent Line

• Center

What is the definition of a chord?

• A line segment whose endpoints are on a circle.

• A line that passes through the center of the circle.

• A line segment that intersects at a point on the circle.

• A line that intersects a circle in two points.

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 point of tangency?

• The point where the tangent intersects a circle.

• The point where the tangent interssects the center of the circle.

• The point where the tangent intersects with another tangent.

• The point where the tangent intersects with a secant.

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

• Secant

• Tangent

• Chord

• Point of Tangency

What is in the picture?

• Two tangents

• Two Secants

• Two Chords

• One Secant and One Tangent

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