Circumference and Area of a Circle

What does "circumference" mean?

• Space a circle takes up
• Distance around a circle
• Line from one side of a circle to another
• Line from center of circle to side

Does this picture show the diameter or radius of a circle?

• Diameter

• Radius

Does this picture show the diameter or radius of a circle?

• Diameter
• Radius

Steven purchases a bowl. The diameter of the bowl is 14 cm. What is the circumference of the bowl?

C=πd C=2πr A=πr² π=3.14 or ²²/₇

• 28 cm

• 43.96 cm

• 87.96 cm

• 7 cm

What is the area of this circle?

C=πd C=2πr A=πr² π=3.14 or ²²/₇

• 82.13

• 78.5

• 314.16

• 170.12

What is the area of this circle?

C=πd C=2πr A=πr² π=3.14 or ²²/₇

• 6082.12

• 1519.76

• 1893.14

• 1292.92

Find the circumference of a circle with a diameter of 11 millimeters.

C=πd C=2πr A=πr² π=3.14 or ²²/₇

• 34.6 mm

• 30 mm

• 25.3 mm

• 34.54 mm

what is the area of a circle with the diameter of 16 cm ?

C=πd C=2πr A=πr² π=3.14 or ²²/₇

• 66 cm

• 200.96 cm

• 66.5 cm

• 10 m

Find the circumference of a circle with a radius of 13.5 mm.

C=πd C=2πr A=πr² π=3.14 or ²²/₇

• 37.68mm

• 18.84mm

• 84.78 mm

• none of the above

What is the circumference of a circle with a radius of 54 m?

C=πd C=2πr A=πr² π=3.14 or ²²/₇

• 339.12 m

• 169.56 m

• 84.78 m