Circle Basics, Circumference and Area

What is the radius if the diameter is 27?

• 135

• 13.5

• 1.35

• I do not know

• Name the circle: Circle B
• Name the circle: Circle DE
• Name the circle: Circle A
• Name the circle: Circle DBC

• Diameter is: DE
• Diameter is: BA
• Diameter is: BC
• Diameter is: DC

• Chords are: WX & UV

• Chords are: OR UV, & TS

• Chords are: UV

• Chords are: YZ & AB

• Radi are: DE & BC
• Radi are: BC
• Radi are: BC, BA & BD
• Radi are: BE, DC & AD

A line segment that connects and two points on a circle is what?

• Radius

• Sector

• Segment

• Chord

• How many chords are there: 1
• How many chords are there: 5
• How many chords are there: 3
• How many chords are there: 0

The circumference of a circle is 30π yards. What is the diameter?

• 10 yd

• 20 yd

• 30 yd

• 60 yd

The following formula is for the area of :
A=πr²

• Square

• Cylinder

• Circle

• Triangular Prism

Area of a Circle

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