Circle Basic Vocabulary

A chord is a segment that connects ___________

• the center to the endpoint
• to one point outside the circle
• a central angle
• 2 endpoints of a circle

A segment that has one endpoint at the center and the other endpoint on the circle is the __________.

• diameter

• chord

• radius

• secant

If the radius of a circle is 2x, what is the diameter?

• 2x

• x

• 4x

• 2x²

Tags

CCSS.7.G.B.4

Which best describes line AB?

• chord
• secant
• tangent
• diameter

What is the term for a line that intersects a circle at exactly one point?

• diameter

• secant

• tangent

• chord

A tangent line of a circle is...

• It's diameter
• It's radius
• It's circumference
• A line that touches the circle only once

A tangent line of a circle is...

• It's diameter
• It's radius
• It's circumference
• A line that touches the circle only once

If the diameter of a circle is 27, the radius is _____?

• 27

• 13.5

• 54

• 9

Tags

CCSS.7.G.B.4

Which of the following names a diameter?

• segment AC
• segment DB
• segment AB
• segment BC

A line that passes through the center of a circle and has endpoints on the circle is called a _______.

• radius

• chord

• diameter

• secant

Tags

CCSS.HSG.C.A.2