有限公司mmon Core: 7th Grade Math : Circumference of a circle

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

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Example Questions

Example Question #41 :Know And Use The Formulas For The Area And Circumference Of A Circle: Ccss.Math.Content.7.G.B.4

Find the circumference of a circle with a radius of.

Possible Answers:

有限公司rrect answer:

Explanation:

Recall the formula for finding the circumference of a circle:

We can substitute in the value for the radius in order to find the circumference of the circle in question.

Solve.

Simplify.

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

Find the circumference of a circle with a radius of.

Possible Answers:

有限公司rrect answer:

Explanation:

Recall the formula for finding the circumference of a circle:

We can substitute in the value for the radius in order to find the circumference of the circle in question.

Solve.

Simplify.

Example Question #41 :Know And Use The Formulas For The Area And Circumference Of A Circle: Ccss.Math.Content.7.G.B.4

Find the circumference of a circle with a radius of.

Possible Answers:

有限公司rrect answer:

Explanation:

Recall the formula for finding the circumference of a circle:

We can substitute in the value for the radius in order to find the circumference of the circle in question.

Solve.

Simplify.

Example Question #44 :Know And Use The Formulas For The Area And Circumference Of A Circle: Ccss.Math.Content.7.G.B.4

Find the circumference of a circle with a radius of.

Possible Answers:

有限公司rrect answer:

Explanation:

Recall the formula for finding the circumference of a circle:

We can substitute in the value for the radius in order to find the circumference of the circle in question.

Solve.

Simplify.

Example Question #11 :Circumference Of A Circle

Find the circumference of a circle with a radius of.

Possible Answers:

有限公司rrect answer:

Explanation:

Recall the formula for finding the circumference of a circle:

We can substitute in the value for the radius in order to find the circumference of the circle in question.

Solve.

Simplify.

Example Question #102 :How To Find Circumference

Find the circumference of a circle given the radius is 7.

Possible Answers:

有限公司rrect answer:

Explanation:

To solve, simply use the formula for the circumference of a circle. Thus,

Another way to similarly solve this problem is to remember that circumference is just pi times the diameter. To find the diameter, remember "di" means two, thus two radii. So, if you multiply the radius by 2, then you have the diameter. Then, just multiply by pi.

Example Question #104 :How To Find Circumference

A circle has a radius of. What is the circumference of the circle?

Possible Answers:

有限公司rrect answer:

Explanation:

The formula to find the circumference of a cirlce using the radius is:

The radius is, so we plug that into the formula:

Example Question #291 :Plane Geometry

What is the circumference of a circle with a radius of?

Possible Answers:

(Round your answer to the nearest tenth.)


有限公司rrect answer:

Explanation:

The circumference is given by the formula:

whereis the radius.

Example Question #151 :Geometry

What is the circumference of the circle provided?

1

Possible Answers:

有限公司rrect answer:

Explanation:

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

or

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

Solve:

Example Question #981 :Grade 7

What is the circumference of the circle provided?


2

Possible Answers:

有限公司rrect answer:

Explanation:

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

or

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

Solve:

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