TEKS.MATH.7.9B

Daniel wants to buy cookies for her friend. The
radius of a cookie is 5 inches. What is the cookie’s 
circumference?

• 10 in
• 2.5 in
• 15.7 in
• 31.4 in 

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TEKS.MATH.7.9B

What is the diameter?

• 5 in
• 10 in
• 3.14 in
• 15.84 in

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TEKS.MATH.7.9B

What is the formula for area of a circle given the radius?

• A = πr
• A = 2πr
• A = πd
• A = πr²

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TEKS.MATH.7.9B

What is the formula for the area of a circle?

• A=2πr
• A=2πd
• A=πr²
• A=2πr²

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TEKS.MATH.7.9B

What is the circumference of the following shape? (use an exact value)

• 14π mi
• 7π mi
• 49π mi
• 43.98 mi

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TEKS.MATH.7.9B

Jayne has a very large circular lollipop that has a circumference of 25.12 inches. What would the diameter of Jayne’s lollipop be? Round to nearest hundredth. Don't forget to label.

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TEKS.MATH.7.9B

Jesse used rope to stake a circular region in which to plant a garden. The diameter of the region is 20 inches. What is the approximate area of half of the garden? Round to the nearest hundredth. Don't forget to label - square inches or sq in)

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TEKS.MATH.7.9B

The _______ of a circle is the distance around the circle.

• radius

• diameter

• circumference

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TEKS.MATH.7.9B

When you are given the radius (short line) you multiply 3.14 x the length of the radius and then multiply x ____

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TEKS.MATH.7.9B

Find Circumference.

• 87.92 cm

• 43.96 cm

• 21.98 cm

• 3.14 cm

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TEKS.MATH.7.9B