Introduction to Circles

The _____ is the distance from the center to any point on the circle.

• diameter
• radius
• π
• center

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CCSS.HSG.C.A.2

CCSS.HSG.CO.A.1

If you are given the diameter, how can you calculate the radius?

• Multiply the diameter by 2
• Divide the diameter by 2
• Add 2 to the diameter
• Subtract 2 from the diameter

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CCSS.7.G.B.4

Which segment is the diameter?

• AC
• BD
• LM
• CE

Tags

CCSS.HSG.C.A.2

Which segment is a radius?

• LM
• DC
• BD
• ML

Tags

CCSS.HSG.C.A.2

A given point directly in the middle of a circle.

• Radius

• Diameter

• Center

• Point

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CCSS.HSG.C.A.2

CCSS.HSG.CO.A.1

A line that touches (intersects) the circle only once from the outside.

• Secant

• Chord

• Tangent

• Line

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CCSS.HSG.C.A.2

CCSS.HSG.C.A.4

The place where the tangent line touches the circle is called the

• Point of Tangerine

• Point of Transparency

• Point of Tangency

• Point of Tangential

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CCSS.HSG.C.A.2

CCSS.HSG.C.A.4

Circles add to how many degrees?

• 180º

• 360º

• 520º

• 300º

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CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

Line AB is a

• Diameter

• Secant Line

• Tangent Line

• Radius

Tags

CCSS.HSG.C.A.2

BT is a

• Chord

• Diameter

• Line

• Radius

Tags

CCSS.HSG.C.A.2