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