Area and Circumference

A line that goes from one end of the circle to the other and crosses the center point.  

• center
• diameter
• dime eater
• radius

Is the red line a radius or diameter of the circle?

• Radius

• Diameter

Tags

CCSS.HSG.C.A.2

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

Tags

CCSS.HSG.C.A.2

Which segment is not a radius?

• CA
• CB
• CD
• LM

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.

What is the formula for Circumference?

• C = πr²

• C = 2πr

Tags

CCSS.7.G.B.4

What is the area of a circle?

• 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.

What is the formula for area of a circle?

• A = πr²

• A = 2πr

Tags

CCSS.7.G.B.4

What is the radius of this circle?

• 18 in
• 10 in
• 9 in
• 8 in

Tags

CCSS.7.G.B.4

What is the diameter of this circle?

• 3.5 m
• 3 m
• 5 m
• 7 m

Tags

CCSS.7.G.B.4