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Common Core: 7th Grade Math : Geometry

Study concepts, example questions & explanations for Common Core: 7th Grade Math

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All Common Core: 7th Grade Math Resources

7 Diagnostic Tests 110 Practice Tests Question of the Day Flashcards Learn by Concept

Example Questions

Example Question #101 : How To Find Circumference

What is the circumference of a circle with a radius of $5.2\textup{ in}$ ?

Possible Answers:

$16.3\textup{ in}$

$22.8\textup{ in}$

$10.4\textup{ in}$

$49.3\textup{ in}$

$32.7\textup{ in}$

(Round your answer to the nearest tenth.)

Correct answer:

$32.7\textup{ in}$

Explanation:

The circumference is given by the formula:

$C=2\pi r$

where is the radius.

$2\pi (5.2)=32.7\ in$

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Example Question #42 : Know And Use The Formulas For The Area And Circumference Of A Circle: Ccss.Math.Content.7.G.B.4

What is the circumference of the circle provided?

Possible Answers:

$4\pi\textup{ in}$

$3\pi\textup{ in}$

$2\pi\textup{ in}$

$5\pi\textup{ in}$

$6\pi\textup{ in}$

Correct answer:

$6\pi\textup{ in}$

Explanation:

In order to solve this problem, we need to recall the formula for the circumference of a circle:

$C=2r\pi$ or $C=d\pi$

The circle in this question provides us with the radius, so we can use the first formula to solve:

$C=2(3)\pi$

Solve:

$C=6\pi\textup{ in}$

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Example Question #51 : Know And Use The Formulas For The Area And Circumference Of A Circle: Ccss.Math.Content.7.G.B.4

What is the circumference of the circle provided?

Possible Answers:

$17\pi\textup{ in}$

$18\pi\textup{ in}$

$14\pi\textup{ in}$

$16\pi\textup{ in}$

$15\pi\textup{ in}$

Correct answer:

$14\pi\textup{ in}$

Explanation:

In order to solve this problem, we need to recall the formula for the circumference of a circle:

$C=2r\pi$ or $C=d\pi$

The circle in this question provides us with the radius, so we can use the first formula to solve:

$C=2(7)\pi$

Solve:

$C=14\pi\textup{ in}$

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Example Question #21 : Circumference Of A Circle

What is the circumference of the circle provided?

Possible Answers:

$21\pi\textup{ in}$

$25\pi\textup{ in}$

$23\pi\textup{ in}$

$24\pi\textup{ in}$

$22\pi\textup{ in}$

Correct answer:

$22\pi\textup{ in}$

Explanation:

In order to solve this problem, we need to recall the formula for the circumference of a circle:

$C=2r\pi$ or $C=d\pi$

The circle in this question provides us with the radius, so we can use the first formula to solve:

$C=2(11)\pi$

Solve:

$C=22\pi\textup{ in}$

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Example Question #22 : Circumference Of A Circle

What is the circumference of the circle provided?

Possible Answers:

$28\pi\textup{ in}$

$30\pi\textup{ in}$

$27\pi\textup{ in}$

$31\pi\textup{ in}$

$29\pi\textup{ in}$

Correct answer:

$30\pi\textup{ in}$

Explanation:

In order to solve this problem, we need to recall the formula for the circumference of a circle:

$C=2r\pi$ or $C=d\pi$

The circle in this question provides us with the radius, so we can use the first formula to solve:

$C=2(15)\pi$

Solve:

$C=30\pi\textup{ in}$

Report an Error

Example Question #21 : Circumference Of A Circle

What is the circumference of the circle provided?

Possible Answers:

$40\pi\textup{ in}$

$44\pi\textup{ in}$

$43\pi\textup{ in}$

$42\pi\textup{ in}$

$41\pi\textup{ in}$

Correct answer:

$42\pi\textup{ in}$

Explanation:

In order to solve this problem, we need to recall the formula for the circumference of a circle:

$C=2r\pi$ or $C=d\pi$

The circle in this question provides us with the radius, so we can use the first formula to solve:

$C=2(21)\pi$

Solve:

$C=42\pi\textup{ in}$

Report an Error

Example Question #51 : Know And Use The Formulas For The Area And Circumference Of A Circle: Ccss.Math.Content.7.G.B.4

What is the circumference of the circle provided?

Possible Answers:

$42\pi\textup{ in}$

$44\pi\textup{ in}$

$43\pi\textup{ in}$

$41\pi\textup{ in}$

$40\pi\textup{ in}$

Correct answer:

$40\pi\textup{ in}$

Explanation:

In order to solve this problem, we need to recall the formula for the circumference of a circle:

$C=2r\pi$ or $C=d\pi$

The circle in this question provides us with the diameter, so we can plug the diameter into the second formula:

$C=40\pi\textup{ in}$

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Example Question #24 : Circumference Of A Circle

What is the circumference of the circle provided?

Possible Answers:

$32\pi\textup{ in}$

$36\pi\textup{ in}$

$35\pi\textup{ in}$

$33\pi\textup{ in}$

$34\pi\textup{ in}$

Correct answer:

$36\pi\textup{ in}$

Explanation:

In order to solve this problem, we need to recall the formula for the circumference of a circle:

$C=2r\pi$ or $C=d\pi$

The circle in this question provides us with the diameter, so we can plug the diameter into the second formula:

$C=36\pi\textup{ in}$

Report an Error

Example Question #21 : Circumference Of A Circle

What is the circumference of the circle provided?

Possible Answers:

$29\pi\textup{ in}$

$27\pi\textup{ in}$

$25\pi\textup{ in}$

$26\pi\textup{ in}$

$28\pi\textup{ in}$

Correct answer:

$28\pi\textup{ in}$

Explanation:

In order to solve this problem, we need to recall the formula for the circumference of a circle:

$C=2r\pi$ or $C=d\pi$

The circle in this question provides us with the diameter, so we can plug the diameter into the second formula:

$C=28\pi\textup{ in}$

Report an Error

Example Question #25 : Circumference Of A Circle

What is the circumference of the circle provided?

Possible Answers:

$18\pi\textup{ in}$

$17\pi\textup{ in}$

$19\pi\textup{ in}$

$15\pi\textup{ in}$

$16\pi\textup{ in}$

Correct answer:

$16\pi\textup{ in}$

Explanation:

In order to solve this problem, we need to recall the formula for the circumference of a circle:

$C=2r\pi$ or $C=d\pi$

The circle in this question provides us with the diameter, so we can plug the diameter into the second formula:

$C=16\pi\textup{ in}$

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Common Core: 7th Grade Math : Geometry

Study concepts, example questions & explanations for Common Core: 7th Grade Math

All Common Core: 7th Grade Math Resources

Example Questions

Example Question #101 : How To Find Circumference

Example Question #42 : Know And Use The Formulas For The Area And Circumference Of A Circle: Ccss.Math.Content.7.G.B.4

Example Question #51 : Know And Use The Formulas For The Area And Circumference Of A Circle: Ccss.Math.Content.7.G.B.4

Example Question #21 : Circumference Of A Circle

Example Question #22 : Circumference Of A Circle

Example Question #21 : Circumference Of A Circle

Example Question #51 : Know And Use The Formulas For The Area And Circumference Of A Circle: Ccss.Math.Content.7.G.B.4

Example Question #24 : Circumference Of A Circle

Example Question #21 : Circumference Of A Circle

Example Question #25 : Circumference Of A Circle

All Common Core: 7th Grade Math Resources

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