Find the Area and Circumference

What is the formula for Circumference?

• C = π×r²

• C = 2×π×r

Tags

CCSS.7.G.B.4

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

Solve the area for the shaded region:

• 200.96ft²

• 64 ft²

• 50.24 ft²

• 13.76 ft²

Ms. Catall is using a compass to find her way out of the woods. The compass has a radius of 4 centimeters. What is the compass's area?

• 49.2 cm²

• 45.6 cm²

• 50.24 cm²

• 55.9 cm²

Tags

CCSS.7.G.B.4

Jayne has a very large circular lollipop that has a circumference of 25.12 inches. What would the area of Jayne’s lollipop be? Use π = 3.14. (You are going to have to find the diameter then radius before finding area.)

• 50.24 in.²

• 200.96 in²

• 12.56 in. ²

• 78.88 in^.2

Tags

CCSS.7.G.B.4

A clock face has a diameter of 10 inches. What is the approximate area of the clock face in square inches?

• 314 in²

• 31.4 in²

• 7.85 in²

• 78.5 in²

Tags

CCSS.7.G.B.4

What is the area of this circle?

• 82.13 m²

• 78.50 m²

• 314.16 m²

• 170.12 m²

Tags

CCSS.7.G.B.4

If you are placing a fence around a circular garden, which of the following are you solving for?

• Area

• Circumference

• Radius

• Diameter

You are looking to buy a gold coin for your collection.  You find a coin that has a circumference of 31.4 centimeters.  What is the area of 1 side of that gold coin?

• 78.5cm

• 15.7cm

• 62.8cm

• 3.14cm

Tags

CCSS.7.G.B.4