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

Hannah drew a circle with a radius of 30 cm. Jonas drew a circle with a radius of 20 cm. What is the approximate difference in the areas of their circles?

• 2,826 cm²
• 1,570 cm²
• 1,256 cm²
• 314 cm²

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

What is the area of this circle?

• 163.2
• 15.3
• 124.2
• 113.1

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

What is the radius of this circle?

• 12cm
• 6cm
• 24cm
• 3cm

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

What formula do you need to find the area of the base of a cone and cylinder?

• A= bh
• A= 1/2bh
• A=πr²
• V= Bh

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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

Jake's cow is tied to a beanstalk with a piece of rope that is 15ft long. What is the area of the circle in which the cow can graze?

• 47.1 ft.
• 176.7 ft²
• 706.9 ft²
• 94.2 ft

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

The circumference of a circle is 28

π meters. What is its radius?

• 4.45m

• 8.9m

• 12 m

• 14m

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

Which of the following is the most accurate definition of π ?

• The ratio of the circumference of any circle to its diameter.

• It is exactly 3.14

• It is exactly 3.1415

• It is exactly 3.141593

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

Find Circumference. Leave answer in terms of pi (π)

• 36π

• 12π

• 6π

• 24π

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

Find the total surface area. Use 3.14 for pi. Round to the nearest tenths.

• 45.2

• 100.5

• 55.3

• 155.7

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