We are open Saturday and Sunday!

Call Now to Set Up Tutoring:

(888) 888-0446

GED Math : Circumference

Study concepts, example questions & explanations for GED Math

Create An Account

All GED Math Resources

4 Diagnostic Tests 263 Practice Tests Question of the Day Flashcards Learn by Concept

Example Questions

← Previous 1 2 3 4 5 6 Next →

Example Question #71 : Geometry And Graphs

Determine the circumference of the circle with a radius of $2\pi^3$ .

Possible Answers:

$4\pi^3$

$16\pi^4$

$8\pi^4$

$16\pi^3$

$4\pi^4$

Correct answer:

$4\pi^4$

Explanation:

Write the formula for the circumference of a circle.

$C= 2\pi r$

Substitute the radius.

$C= 2\pi (2\pi ^3)= (2\pi )(2\pi^3 )$

The answer is: $4\pi^4$

Report an Error

Example Question #72 : Geometry And Graphs

Determine the circumference of a circle with an area of .

Possible Answers:

$18\pi$

$6\sqrt{\pi}$

$2\sqrt{\pi}$

$3\sqrt{2\pi}$

$6\sqrt{2\pi}$

Correct answer:

$6\sqrt{\pi}$

Explanation:

Write the formula for the circumference and area of the circle.

$C=2\pi r$

$A=\pi r^2$

Given the area, we will need to find the radius, which can be used to find the circumference. Substitute the area into the area equation.

$9=\pi r^2$

Solve for .

$\frac{9}{\pi }=\frac{\pi r^2}{\pi }$

$\frac{9}{\pi }=r^2$

Square root both sides.

$\sqrt{\frac{9}{\pi }}=\sqrt{r^2}$

$r=\sqrt{\frac{9}{\pi }}= \frac{3}{\sqrt{\pi}}$

Substitute this back into the circumference equation.

$C=2\pi r = 2\pi \frac{3}{\sqrt{\pi}} = \frac{6\pi}{\sqrt{\pi}} = \frac{6 \sqrt{\pi} \cdot \sqrt{\pi}}{\sqrt{\pi}}$

The answer is: $6\sqrt{\pi}$

Report an Error

Example Question #31 : Circumference

Find the circumference with a radius of 50.

Possible Answers:

$2500\pi$

$250\pi$

$200\pi$

$100 \pi$

$50\pi$

Correct answer:

$100 \pi$

Explanation:

Write the formula to find the circumference of a circle.

$C=2\pi r$

Substitute the radius into the equation.

$C=2\pi (50)$

The circumference is: $100 \pi$

Report an Error

Example Question #74 : Geometry And Graphs

Find the circumference of a circle with the diameter of 2x-5 .

Possible Answers:

$\pi x -5$

$2\pi x -5\pi$

$\pi x -\frac{5}{2}$

$2\pi x -5$

$\pi x -\frac{5}{2}\pi$

Correct answer:

$2\pi x -5\pi$

Explanation:

Write the formula for the circumference of a circle.

$C=\pi D$

Substitute the diameter.

$C=\pi (2x-5) = 2\pi x -5\pi$

The answer is: $2\pi x -5\pi$

Report an Error

Example Question #75 : Geometry And Graphs

A circle has a radius of 10cm. Find the circumference.

Possible Answers:

$100\pi \text{ cm}$

$50\pi \text{ cm}$

$20\pi \text{ cm}$

$15\pi \text{ cm}$

$10\pi \text{ cm}$

Correct answer:

$20\pi \text{ cm}$

Explanation:

To find the circumference of a circle, we will use the following formula:

$C = 2 \pi r$

where r is the radius of the circle.

Now, we know the radius of the circle is 10cm. So, we will substitute. We get

$C = 2 \cdot \pi \cdot 10\text{cm}$

$C = 2 \cdot 10\text{cm} \cdot \pi$

$C = 20\text{cm} \cdot \pi$

$C = 20\pi \text{ cm}$

Report an Error

Example Question #76 : Geometry And Graphs

Let $\pi = 3.14$ .

Find the circumference of a circle with a diameter of 8in.

Possible Answers:

$6.28\text{in}$

$25.12\text{in}$

$12.56\text{in}$

$200.96\text{in}$

$50.24\text{in}$

Correct answer:

$25.12\text{in}$

Explanation:

To find the circumference of a circle, we will use the following formula:

$C = \pi d$

where d is the diameter of the circle.

Now, we know $\pi = 3.14$ . We know the diameter of the circle is 8in. So, we substitute. We get

$C = 3.14 \cdot 8\text{in}$

$C = 25.12\text{in}$

Report an Error

Example Question #77 : Geometry And Graphs

Determine the circumference of the circle with a radius of 6x-3 .

Possible Answers:

$12\pi x-6\pi$

$36\pi x^2-9\pi$

$12\pi x-3$

$12\pi x-3\pi$

$36x\pi x^2 -36x \pi -9 \pi$

Correct answer:

$12\pi x-6\pi$

Explanation:

Write the formula for the circumference of the circle.

$C=2\pi r$

Substitute the radius.

$C=2\pi (6x-3) = 12\pi x-6\pi$

The answer is: $12\pi x-6\pi$

Report an Error

Example Question #78 : Geometry And Graphs

Let $\pi = 3.14$

Find the circumference of a circle with a diameter of 20in.

Possible Answers:

$47.1\text{in}^2$

$31.4\text{in}^2$

$314\text{in}^2$

$62.8\text{in}^2$

$125.6\text{in}^2$

Correct answer:

$62.8\text{in}^2$

Explanation:

To find the circumference of a circle, we will use the following formula:

$C = \pi d$

where d is the diameter of the circle.

Now, we know $\pi = 3.14$ . We know the diameter of the circle is 20in. So, we can substitute. We get

$C = 3.14 \cdot 20\text{in}$

$C = 62.8\text{in}$

Report an Error

Example Question #79 : Geometry And Graphs

Find the circumference of a circle with a radius of $3\pi +2$ .

Possible Answers:

$10\pi$

$6\pi + 4$

$6\pi^2 + 4\pi$

$10\pi ^2$

$7\pi$

Correct answer:

$6\pi^2 + 4\pi$

Explanation:

Write the formula for the circumference of the circle.

$C=2\pi r$

Substitute the radius.

$C=2\pi (3\pi +2) =6\pi^2 + 4\pi$

The answer is: $6\pi^2 + 4\pi$

Report an Error

Example Question #80 : Geometry And Graphs

Find the circumference of a circle with a diameter of $6\pi^5$ .

Possible Answers:

$6\pi ^6$

$12\pi ^5$

$12\pi ^6$

$6\pi ^3$

$6\pi ^5$

Correct answer:

$6\pi ^6$

Explanation:

Write the formula for the circumference of the circle.

$C= 2\pi r = \pi D$

Substitute the diameter.

$C= \pi (6\pi ^5) = 6\pi ^6$

The answer is: $6\pi ^6$

Report an Error

← Previous 1 2 3 4 5 6 Next →

View Tutors

Lindsay
Certified Tutor

University of North Florida, Bachelor in Arts, Psychology.

View Tutors

Zahid
Certified Tutor

kurukshetra university haryana , Master's/Graduate, Civil engineering.

View Tutors

Andrew
Certified Tutor

University of Wisconsin-Stevens Point, Bachelor of Science, Mathematics. University of Wisconsin-Oshkosh, Master of Science, ...

All GED Math Resources

4 Diagnostic Tests 263 Practice Tests Question of the Day Flashcards Learn by Concept

Popular Subjects

Chemistry Tutors in Los Angeles, ISEE Tutors in New York City, SAT Tutors in New York City, Algebra Tutors in Washington DC, Biology Tutors in Chicago, Statistics Tutors in Atlanta, ACT Tutors in Los Angeles, Statistics Tutors in Dallas Fort Worth, Biology Tutors in San Francisco-Bay Area, Reading Tutors in Houston

Popular Courses & Classes

Spanish Courses & Classes in Los Angeles, ACT Courses & Classes in New York City, GMAT Courses & Classes in Washington DC, ACT Courses & Classes in Seattle, MCAT Courses & Classes in Dallas Fort Worth, MCAT Courses & Classes in Atlanta, ISEE Courses & Classes in Phoenix, Spanish Courses & Classes in Washington DC, MCAT Courses & Classes in New York City, LSAT Courses & Classes in Los Angeles

Popular Test Prep

GRE Test Prep in Los Angeles, SSAT Test Prep in Phoenix, MCAT Test Prep in Dallas Fort Worth, SAT Test Prep in Chicago, LSAT Test Prep in Seattle, ACT Test Prep in New York City, SSAT Test Prep in Philadelphia, GRE Test Prep in Phoenix, SAT Test Prep in Phoenix, LSAT Test Prep in Washington DC

DMCA Complaint

If you believe that content available by means of the Website (as defined in our Terms of Service) infringes one or more of your copyrights, please notify us by providing a written notice (“Infringement Notice”) containing the information described below to the designated agent listed below. If Varsity Tutors takes action in response to an Infringement Notice, it will make a good faith attempt to contact the party that made such content available by means of the most recent email address, if any, provided by such party to Varsity Tutors.

Your Infringement Notice may be forwarded to the party that made the content available or to third parties such as ChillingEffects.org.

Please be advised that you will be liable for damages (including costs and attorneys’ fees) if you materially misrepresent that a product or activity is infringing your copyrights. Thus, if you are not sure content located on or linked-to by the Website infringes your copyright, you should consider first contacting an attorney.

Please follow these steps to file a notice:

You must include the following:

A physical or electronic signature of the copyright owner or a person authorized to act on their behalf; An identification of the copyright claimed to have been infringed; A description of the nature and exact location of the content that you claim to infringe your copyright, in \ sufficient detail to permit Varsity Tutors to find and positively identify that content; for example we require a link to the specific question (not just the name of the question) that contains the content and a description of which specific portion of the question – an image, a link, the text, etc – your complaint refers to; Your name, address, telephone number and email address; and A statement by you: (a) that you believe in good faith that the use of the content that you claim to infringe your copyright is not authorized by law, or by the copyright owner or such owner’s agent; (b) that all of the information contained in your Infringement Notice is accurate, and (c) under penalty of perjury, that you are either the copyright owner or a person authorized to act on their behalf.

Send your complaint to our designated agent at:

Charles Cohn Varsity Tutors LLC
101 S. Hanley Rd, Suite 300
St. Louis, MO 63105

Or fill out the form below:

Do not fill in this field

Contact Information

* Full legal name

Company name

* Phone number

* Email address

Address

* Address1

Address2

* City

* State

* Zipcode

* Country

Complaint Details

* URL of copyrighted work (where your original material is located)

* Please describe the copyrighted work so that it may be easily identified

I am the owner, or an agent authorized to act on behalf of the owner of an exclusive right that is allegedly infringed.

I have a good faith belief that the use of the material in the manner complained of is not authorized by the copyright owner, its agent, or the law.

This notification is accurate.

I acknowledge that there may be adverse legal consequences for making false or bad faith allegations of copyright infringement by using this process.

* Signature (your digital signature is legally binding)

HIGH SCHOOL

GRADUATE SCHOOL

K-8

Search 50+ Tests

math tutoring

science tutoring

foreign languages

elementary tutoring

other

Search 350+ Subjects

GED Math : Circumference

Study concepts, example questions & explanations for GED Math

All GED Math Resources

Example Questions

Example Question #71 : Geometry And Graphs

Example Question #72 : Geometry And Graphs

Example Question #31 : Circumference

Example Question #74 : Geometry And Graphs

Example Question #75 : Geometry And Graphs

Example Question #76 : Geometry And Graphs

Example Question #77 : Geometry And Graphs

Example Question #78 : Geometry And Graphs

Example Question #79 : Geometry And Graphs

Example Question #80 : Geometry And Graphs

All GED Math Resources

Report an issue with this question

DMCA Complaint

Contact Information

Address

Complaint Details

Email address:
Your name:
Feedback: