Parts of a Circle and its Relationships

This is the point from which all points on a circle are equidistant.

What is a figure formed by two rays with a common endpoint?

• point

• line

• plane

• angle

Which picture shows a segment?

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Name a semicircle.

• PQR

• PQS

• PRS

• PSR

Line Segment DC is the __________ of the circle.

• Radius

• Diameter

• Chord

• Circumference

What is CB?

• diameter
• center
• circumference
• radius

What do we call the red line?

• Chord

• Diameter

• Arc

• Segment

A chord is a diameter.

• Always true

• Sometimes true

• Never true

Name the circle part shaded in green

• Radius

• Diameter

• Semi-circle

• Arc

Which picture shows a chord?

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