SOL 6.7ab Circles Quiz Review

Claire wants to cover this circle with colorful paper. How much paper will she need to cover the whole circle? (a)  

• 254.34 square inches
• 56.52 square inches
• 113.04 square inches
• 28.26 square inches

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6.7.b

Based on the circle given, which of the following is a way to approximately calculate pi?

• 4 x 12.56
• 12.56 ÷ 4
• 12.56 + 4
• 12.56 - 4

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6.7.b

Calculate the circumference of the circle shown. Use 3.14 for pi.

• 3.5 units
• 21.98 units
• 43.96 units
• 153.86 units

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6.7.b

Identify EACH value that is approximately pi.

You must select ALL correct answers.

• 7/22

• 3.14

• c/d

• 22/7

• r x 2

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6.7.b

A circular pool has a radius of 13 meters.

At least how big would the pool cover need to be to cover the entire pool?

Use 3.14 for pi.

• 81.64 meters squared

• 2,122.64 meters squared

• 40.82 meters squared

• 530.66 meters squared

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6.7.b

Alexandria has a circular pizza that has a diameter of 10 inches.

How much crust is around the edge of the pizza?

Use 3.14 for pi.

• 31.4 inches

• 314 inches

• 78.5 inches

• 15.7 inches

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6.7.b

What is the circumference of circle with a diameter of 20 feet?

• 62.8 feet
• 125.6 feet
• 3.14 feet
• 40 feet

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6.7.b

Kylie is making pizzas and wants to stuff the edges of the crust with cheese.

If her pizza has a radius of 7 inches, how many inches of cheese will go around the edges?

• 43.96 inches

• 21.98 inches

• 14 inches

• 153.86 inches

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6.7.b

A circular driveway has a diameter of 20 feet.

What is the area of the driveway?

• 31.4 sq. ft

• 314 sq. ft.

• 1256 sq. feet

• 62.8 sq. ft.

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6.7.b

Which statement defines pi?`

• The ratio of the circumference of a circle to its diameter.
• The sum of twice the length and twice the width of a polygon.
• The ratio of the diameter of a circle to its circumference.
• The product of the length and width of a polygon.

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6.7.b