TEKS.MATH.7.9B

A DVD has a diameter of 15 millimeters. Which equation would help you determine the circumference?

• c = 15π
• C = 2π15
• c = 15/π
• c = 15/2π

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TEKS.MATH.7.9B

Find the area of the shape

• 44.13 sq cm 
• 143.04 sq cm
• 88.26 sq cm 

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TEKS.MATH.7.9B

What is the radius of this circle?

• 18
• 36
• 9
• 8

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TEKS.MATH.7.9B

Find the perimeter of the semicircular region. Round your answer to the nearest hundredth.

• 23.13 m

• 28.26 m

• 14.13 m

• 56.52 m

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TEKS.MATH.7.9B

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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TEKS.MATH.7.9B

A circular tablecloth has a radius of 2.5 feet. Kyle is sewing a piece of ribbon around the edge of the tablecloth. If Kyle has exactly enough ribbon, which measurement is closest to the length of the piece of ribbon in feet?

• 7.85 ft

• 15.7 ft

• 19.63 ft

• 31.4 ft

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TEKS.MATH.7.9B

What is the area of this circle? Use the Pi button.

• 452.39 cm²

• 139.12 cm²

• 113.1 cm²

• 84.23 cm²

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TEKS.MATH.7.9B

The homeowners association wants to enclose the playground in a fence. So they need to figure out how much fencing will they need to purchase. Is this question finding the area or the circumference of a circle?

• area

• circumference

• neither

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TEKS.MATH.7.9B

The distance around a circle

• area

• diameter

• circumference

• radius

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TEKS.MATH.7.9B

A circle has a diameter of 6ft. What is the circumference of the circle?

• 18.84 ft

• 113.04 ft

• 36 ft

• None of the above

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TEKS.MATH.7.9B