Area and Circumference of Circles

If the diameter of a circle is 50 yards, the radius is _____

• 100 yards
• 25 yards
• 150 yards
• 15 yards

If the radius of a circle is 12.5 meters, the diameter is ____

• 6.25 meters
• 125 meters
• 25 meters
• 50 meters

Tom measured his frisbee from the center to the outside and found it to be 6 inches.  What is the approximate circumference of Tom's frisbee?

• 37.68 inches
• 3 inches
• 12 inches
• 376.8 inches

The radius of a circle is

• The measurement from the center of a circle to an edge of the circle.
• The measurement around the circle
• The measurement from and edge of the circle to another edge through the center
• A line perpendicular to the diameter of the circle

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. 

Mrs. Wilson placed the welcome mat shown below on her front door step. What is the area of her welcome mat in square inches?

• 12.56 sq. in.

• 200.96 sq. in.

• 50.24 sq. in.

• 25.12 sq. in

Steven purchases a bowl. The diameter of the

bowl is 14 cm. What is the circumference of the

bowl?

• 28 cm

• 43.96 cm

• 87.96 cm

• 7 cm

Determine the radius of the penny

• 59.66 mm
• 9.5 mm
• 38 mm
• 119.32 mm

Find the area of the circle

• 43.96
• 153.86
• 87.82
• 307.72

The diameter of a circle is 3 centimeters. What is the circumference?

• 11.5cm2
• 9.42 cm2
• unicorns are awsome
• 45.3 cm2