Circumference, Area

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

• 11.5cm2

• 9.42 cm2

• unicorns are awsome

• 45.3 cm2

The radius of the circle is 9 meters.  What is the circle's circumference?

• 9 meters

• 28.26 meters

• 56.52 meters

• 18 meters

What is the name for the "perimeter" of a circle?

• Perimeter

• Gerald

• Circumference

• Diameter

Find the area of the circle.  The radius is 7 cm. 

• 43.96 cm

• 153.86 cm

• 87.82 cm

• 307.72 cm

Find the area of the circle below.

• 100 cm

• 225 cm

• 9 cm

• 28.26 cm

What is the radius of this circle?

• 5 in

• 10 in

• 3.14 in

• 15.84 in

What is the area of a circle with a radius of 21 cm?

• 1384.74 cm²

• 2142.12 cm²

• 4348.08 cm²

• 1289.12 cm²

What is the diameter of this circle?

• 88 in

• 28 inches

• 116 square in

• 14 inches

Find the circumference (to the nearest whole number)

• 88 in

• 44 in

• 116 square in

• None of the above

what is the circumference of this circle ?

• 3.14 cm 

• 37.68 cm

• 24 cm

• 68.4 cm