Circles Intro

Circles Intro

Parts of a Circle

• Center

• radius

• diameter

• chord

• secant

• tangent

• point of tangency

Multiple Choice

PR is an example of a ____

• secant

• tangent

• diameter

• radius

Multiple Choice

Line k is an example of a ______

• tangent

• secant

• chord

• radius

Multiple Choice

What is an example of a point of tangency?

• A

• F

• H

• B

Multiple Choice

Line j is an example of a ______

• chord

• tangent

• diameter

• secant

Multiple Choice

How many common tangents do the circles have?

• 1

• 2

• 3

• 4

Multiple Choice

How many common tangents do the circles have?

• 0

• 1

• 2

• 3

Multiple Choice

How many common tangents do the circles have?

• 1

• 2

• 3

• 4

Determining if a line is tangent to a circle

A tangent to a circle will be perpendicular to the radius of a circle at the point of tangency

Tangent segments of a circle with the same external endpoint are congruent