Area and circumference

What is the diameter?

• 8
• 16
• 10
• 4

Tags

CCSS.7.G.B.4

A DVD has a diameter of 15 millimeters. Which equation would help you determine the circumference?

• c = 15π
• C = 2π15
• c = 15 ÷ π
• c = 15 π

Tags

CCSS.7.G.B.4

What is the area of this circle?

• 8322.13
• 1134.11
• 4536.46
• 1267.09

Tags

CCSS.7.G.B.4

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.G.B.4

The radius is 8 inches.  What is the circumference?

• 50.24 inches
• 25.12 inches
• 12.56 inches
• 200.96 inches

Tags

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

Randy’s circular garden has a radius of 1.5 feet. He wants to enclose the garden edging which is going to costs $0.75 per foot. About how much will the edging cost total?

• $8.00

• $7.00

• $3.50

• $0.50

Tags

CCSS.7.G.B.4

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.HSG.GMD.A.1

 A school’s art teacher designs a circular flower bed inside a rectangular sandbox. The sandbox is 6 feet wide and 10 feet long. 
How many square feet will there be for sand after the flower bed is installed? Use 3.14 for π.

• 22 square feet
• 28 square feet
• 32 square feet
• 41 square feet

Tags

CCSS.7.G.B.4

Here is a picture of a Ferris wheel. It has a diameter of 80 meters.How far does a rider travel in three complete rotations around the Ferris wheel?

• 753.6 meters
• 251.2 meters
• 125.6 meters
• 376.8 meters

Tags

CCSS.7.G.B.4