CCSS.Math.Content.7.G.B.4

What is the formula for circumference of a circle given the radius?

• C = pi x r
• C = pi x 2r
• C = pi x D
• C = pi x 2D

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CCSS.Math.Content.7.G.B.4

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

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CCSS.Math.Content.7.G.B.4

find the area of the circle below.

• 100 cm
• 225 cm
• 9 cm
• 28.26 cm

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CCSS.Math.Content.7.G.B.4

An arc is a smaller piece of the

• Chord
• Center
• Circumference
• Radius

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CCSS.Math.Content.7.G.B.4

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

• 3 m 
• 9.42 m
• 12 m
• 18.84 m

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CCSS.Math.Content.7.G.B.4

Is this Radius or Diameter?

• Radius

• Diameter

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CCSS.Math.Content.7.G.B.4

Find the circumference with a radius of 9 mi. Use 3.14 for pi.

• 59.1 mi

• 113 mi

• 26.6 mi

• 56.5 mi

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CCSS.Math.Content.7.G.B.4

Find the circumference with a diameter of 14.8 m. Use 3.14 for pi.

• 48.7 m

• 104.4 m

• 93 m

• 46.5 m

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CCSS.Math.Content.7.G.B.4

Calculate the area. Use 3.14 for pi. Round to the nearest tenth if needed.

• 245.6 m ²

• 223.4 m ²

• 242.2 m ²

• 345.9 m ²

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CCSS.Math.Content.7.G.B.4

_____________ is the distance around the circle

• circumference

• center

• radius

• diameter

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CCSS.Math.Content.7.G.B.4