Circle Measurements

A flat, 2-dimensional curved shape with a center point that is equidistant from every point on the outer, curved edge

• Radius

• Circumference

• Circle

• Diameter

the distance from the center of a circle to any point on the edge

• Diameter

• Area

• Radius

• Circumference

the distance across a circle through a center point

• Diameter

• Circumference

• Radius

• Area

the distance around the outside of a circle

• Diameter

• Circumference

• Radius

• Area

the number of square units that cover an object

• Circumference

• Diameter

• Radius

• Area

the ratio of the circumference of any circle to the diameter of that circle

• Area

• Circumference

• Diameter

• Pi (π)

How do you solve for circumference?

• 3.14

How do you solve for area of a circle?

• 3.14

What is the radius?

• 10 in

• 5 in

What is the diameter?

• 5 in

• 10 in