circumference of circles

The radius of a circle is...

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

• The measurement around the circle

• The measurement from an edge of a circle to another edge going through the center

• The measurement from the center of the circle to an edge of the circle

The diameter of a circle is...

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

• The measurement around the circle

• The measurement from an edge of a circle to another edge going through the center

• The measurement from the center of the circle to an edge of the circle

The circumference of a circle is...

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

• The measurement around the circle

• The measurement from an edge of a circle to another edge going through the center

• The measurement from the center of the circle to an edge of the circle

If you are given the radius of a circle how could you find the diameter of the same circle?

• Multiply the radius by 3.14

• Multiply the radius by 2

• Multiply the radius by 1/2

• Divide the radius by 2

If my radius is 10 ft, what is my diameter?

• 5 ft

• 20 ft

• 31.4 ft

• 62.8 ft

What is the diameter of the pictured circle?

• 4 cm

• 8 cm

• 12 cm

• 16 cm

If you are given the diameter of a circle how could you find the radius of the same circle?

• Multiply the diameter by 3.14

• Multiply the diameter by 2

• Multiply the diameter by 1/2

• Divide the diameter by 3

If the diameter of a circle is 16.6 in, what is the radius?

• 8.3 in

• 16.6 in

• 33.2 in

• 52.124 in

What is the radius of the pictured circle?

• 12.5 cm

• 25 cm

• 50 cm

• 78.5 cm

To calculate the circumference of a circle...

• You multiply the diameter by 1/2

• You multiply the diameter by 2

• You multiply the radius by 3.14

• You multiply the diameter by 3.14