Area & Circumference of Circles

What is the Area of a circle?

• The distance around the circle

• The space inside a circle

What is the circumference of a circle?

• 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

The radius is....

• a line that crosses through the center and touches each edge 
• the center point of a circle 
• a line from the center point to the edge of the circle
• an element in science

The diameter of a circle is...

• The measurement around the circle.

• The distance from an edge of a circle to another edge.

• The distance from the center of the circle to an edge of a circle

• The distance from an edge of a circle to another edge through the center.

Tags

CCSS.HSG.C.A.2

Area is measured in...

• units

• square units

Tags

CCSS.3.MD.C.6

Circumference is measured in...

• units

• square units

What is the formula for area of a circle?

• A=Πr²

• A=Πxr

• A=Πxd

• A=Πxrxr

Tags

CCSS.7.G.B.4

What is the formula for circumference of a circle?

• A=Πr²

• A=Πxr

• A=Πxd

• A=Πxrxr

Tags

CCSS.7.G.B.4

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

• Diameter
• Radius

Tags

CCSS.7.G.B.4

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

• Diameter

• Radius