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

A circle has an area of 254.47 cubic inches. Find the diameter of this circle.  (Remember  area = pi r² )

• 9
• 12
• 15
• 18

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

What is the formula for area of a circle?

• A = pi x D
• A = 2pi x r
• A = pi x r2
• A = pi x D2

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

What is the radius?

• 18
• 72
• 38
• 14

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

Marisa purchases a pot for her father's garden. The diameter of the bottom of the pot is 18 cm. What is the area of the pot's bottom? (Round to the nearest whole number.)

• 28 cm²
• 57 cm²
• 254 cm²
• 1017 cm²

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

what is the area of this semicircle ?

• 100.48cm²
• 80cm²
• 200.96cm²
• none of the above

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

What do we call the red line?

• Chord
• Arc
• Diameter
• Segment

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

The stained glass window is a semicircle. What is the distance around the window?

• 40.82 inches

• 66.82 inches

• 81.64 inches

• 107.64 inches

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

. If Michelle rollerblades around a circular track with a radius of 80 meters, how far does she skate? Use 3.14 for π. Round to the nearest tenth. 

• 251.2 m
• 502.4 m
• 12,352 m
• 20,096 m

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

Alex has trained his puppy, Popper, to jump through a ring. According to Alex's measurements and calculations, the ring has a diameter of 3.5 feet. What is the ring's circumference (use 3.14 for pi)?

• 11.32 ft
• 12.25 ft
• 10.99 ft
• 8.75 ft

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

The circumference of a circle is 21.98 cm.  What is the diameter?  Use 3.14 for π.

• 7 cm
• 69.0172 cm
• 18 cm
• 3.5 cm

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