Circle Vocabulary and Formulas

What is AB?

• diameter

• center

• circumference

• radius

What is DE?

• diameter

• tangent

• chord

• radius

Tags

CCSS.HSG.C.A.2

This is a picture of ___________.

• Minor Arc

• Major Arc

• Semi-Circle

• Central Angle

Diameter = _______ x Radius

• Circumference

• 2

Tags

CCSS.7.G.B.4

Radius = __________ Divided by 2

• Diameter

• Circumference

• Area

Tags

CCSS.7.G.B.4

_________= Pi x (Radius x Radius)

• Perimeter

• Area

• Circumference

• Diameter

Tags

CCSS.7.G.B.4

Pi is approximately equal to?

• 0.314

• 314

• 31.4

• 3.14

Tags

CCSS.7.G.B.4

What does "circumference" mean?

• Space a circle takes up

• Distance around a circle

• Line from one side of a circle to another

• Line from center of circle to side

Does this picture show the diameter or radius of a circle?

• Diameter

• Radius

Does this picture show the diameter or radius of a circle?

• Diameter

• Radius