Circumference and Area of Circles

If my diameter is 19 inches, what is my radius?

• 38 inches

• 9.5 inches

• 59.66 inches

• 119.32 inches

What is the circumference of this circle ?

• 3.14 cm

• 37.68 cm

• 24 cm

• 68.4 cm

A cruise ship has a large, circular window. It has a diameter of 6 meters. What is the window's area?

• 31.25 m²
• 29.55 m²
• 30.36 m²
• 28.26 m²

Tags

CCSS.7.G.B.4

What is the area of this circle?

• 1385.44
• 2142.12
• 5541.77
• 1289.12

Tags

CCSS.7.G.B.4

CCSS.7.G.B.6

Jayne has a very large circular lollipop that has a circumference of 25.12 inches. What would the diameter of Jayne’s lollipop be? Use π = 3.14.

• 4 in.
• 8 in.
• 12 in.
• 16 in.

Tags

CCSS.7.EE.B.3

CCSS.7.G.B.4

The circumference is 62.8 inches.  What is the radius?

• 20 inches
• 10 inches
• 6.28 inches
• 31.4 inches

Tags

CCSS.7.G.B.4

Ms. Merine calculated that her hoop earring has a diameter of 3.5 centimeters. What is the area of her earring (round to the hundreth's place)?

• 9.25 cm²
• 9.62 cm²
• 9.15 cm²
• 9.99 cm²

Tags

CCSS.7.G.B.4

CCSS.7.G.B.6

What is π ? (Best Choice)

• The ratio of the circumference of any circle to its diameter.
• Exactly 3.14
• Exactly 3.1415
• Exactly 3.141593

Tags

CCSS.7.G.B.4

A circular track with a diameter of 60 meters is shown. Shaleah walked around the track 4 times. Approximately how many meters did she walk?

• 377

• 2826

• 754

• 11,304

Sadie has 38 inches of fringe to sew around a circular pillow. What is the approximate diameter of the largest pillow she can use?

• 6 inches

• 9 inches

• 10 inches

• 12 inches