Circles

What is the formula for circumference of a circle given the diameter?

• C = π r
• C = 2 π r
• C = π d
• C = 2 π d

Tags

CCSS.7.G.B.4

A _____ is half of a circle.

• circumference
• pi
• semicircle
•  composite figure

Tags

CCSS.HSG.C.A.2

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

The distance all the way around the circle is called the...

• radius

• diameter

• circumference

• area

Tags

CCSS.HSG.GMD.A.1

CCSS.HSG.C.B.5

Which of the following names a radius?

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

Tags

CCSS.HSG.C.A.2

Which of the following names a diameter?

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

Tags

CCSS.HSG.C.A.2

What is circumference?

• The distance around a circle.
• The space inside the circle.
• A line from side to side passing through the center.
• A line from the center to the side.

Tags

CCSS.HSG.GMD.A.1

CCSS.HSG.CO.A.1

Find the circumference of the circle

• 87.82
• 153.86
• 43.96
• 307.72

Tags

CCSS.7.G.B.4

What is CB?

• diameter
• center
• circumference
• radius

Tags

CCSS.HSG.C.A.2