answersLogoWhite

0


Best Answer

circumference=pi circumference=pi circumference=pi

User Avatar

Wiki User

โˆ™ 2008-10-29 00:00:20
This answer is:
๐Ÿ™
0
๐Ÿคจ
0
๐Ÿ˜ฎ
0
User Avatar
Study guides

Algebra

20 cards

A polynomial of degree zero is a constant term

The grouping method of factoring can still be used when only some of the terms share a common factor A True B False

The sum or difference of p and q is the of the x-term in the trinomial

A number a power of a variable or a product of the two is a monomial while a polynomial is the of monomials

โžก๏ธ
See all cards

J's study guide

1 card

What is the name of Steve on minecraft's name

โžก๏ธ
See all cards

Steel Tip Darts Out Chart

96 cards

170

169

168

167

โžก๏ธ
See all cards

Add your answer:

Earn +20 pts
Q: Why is circumference equal to 2 times Pi times r?
Write your answer...
Submit
Related questions

How do you calculate the circumference if you know the diameter?

Circumference is equal to 2 times pi (3.1416) times one half of the diameter (the radius). So, if the diameter is 2 cm, then the circumference would be the product of (2) times (3.1416) times (1), or 6.2832 cm. Circumference is equal to diameter times Pi. c = Pi * d diameter times pi


Radius of 5m what is the circumference?

If you mean a circle: the circumference is equal to diameter x pi, or 2 x pi x radius.If you mean a circle: the circumference is equal to diameter x pi, or 2 x pi x radius.If you mean a circle: the circumference is equal to diameter x pi, or 2 x pi x radius.If you mean a circle: the circumference is equal to diameter x pi, or 2 x pi x radius.


How do you get circumference when you are given radius?

Circumference is equal to pi x diameter Diameter is equal to 2 times the radius Circumference would be 2 x pi x radius


Why is the circumference of a circle diameter times pi or 2 radius times pi?

Because 2 times the radius is equal to the diameter of the circle


How do you find the circumference of a circle with just the radius?

The circumference of a circle is equal to the radius times 2*pi. 2*pi*R where R is the radius.


In order for the circumference of a circle to equal pie what should the radius be?

It is not pie. That is something you eat. It is pi. Your formula is Circumference = pi times Diameter. Diameter = radius times 2. If you replace Circumference with pi then what do you get? You get pi = pi, or 1 pi = 1 pi. or 1=1. You now know the diameter. if the diameter is 1, what is the radius?


How do you use pi to determine circumference?

Circumference = pi times the diameter, or pi times 2 times radius. Area = pi times (radius squared)


What is the circumference of the can?

Circumference of the can is 2*pi*radius or diameter times pi


What is the radius of a soccer ball?

A soccer ball is 27 to 28 inches in circumference. Circumference is pi times diameter, or 2 times pi times radius. Radius = circumference divided by (2 times pi).


How do you get a circumference?

Using a compass and the circumference is measured by 2 times pi times radius or diameter times pi.


How do you calculate circumference?

to calculate circumference you find a circles radius or diameter. you do diameter times pi or radius times 2 times pi. the you have circumference!


How to calculate the circumference?

To calculate circumference you find a circles radius or diameter. you do diameter times pi or radius times 2 times pi. Then you get the circumference.


What is the circumference if the Diameter equals 3 meters?

Circumference is equal to 2 times pi times the radius. The radius is half the diameter, so pi times the diameter is also the circumference. In this case, the diameter is 3 meters so 3 times pi equals 9.42 So the circumference is about 9.42 meters.


How can circumference equal area?

A=pir2 a=3.14(2)2 a=3.14(4) a=pi*d area =pi r 2 circumference=pi times d in this equation in terms of pi, a=csquared


What is radius of a football?

A soccer ball is 27 to 28 inches in circumference. Circumference is pi times diameter, or 2 times pi times radius. Radius = circumference divided by (2 times pi).


Where do we get the formula for circumference 2 times pi times r?

The simple answer is that pi is the ratio of the circumference divided by the diameter of any circle. This is universally true because any circe, big or small, has the same ratio. Therefore, the circumference is equal to pi times the diameter, or pi times two times the radius. The long answer involves arc length integrals over the equation for a circle, y=sqrt(r^2-x^2)


The radius of a circle is 5 inches What is the circumference of the circle?

Circumference is 2 times pi times radius, so the circumference of this circle is 2 times pi times 5, or 10 times pi. If a decimal answer is needed, pi is approximately 3.14, so C=31.4


Is the circumference greater than the diameter?

No. Circumfrence=2 times pi times radius. And since the daimeter = 2 times radius, circumference is diameter times pi.


Why is pi used to find the circumference of a a circle?

Because the circumference is equal to the diameter multiplied by pi or the radius multiplied by 2*pi.


What is equal to the circumference multiplied by pie?

The diameter multiplied by (pi)2 . That's about 9.87 times the diameter.


What is 360 degrees equivalent to in radians?

The 360 degrees is equal to 2 pi radians. That's 2 times the value of pi (3.14) radians. A radian is a "radius" or the length of a radius. It's that simple, so don't let it confuse you. Angular measure is easy. If you have 180 degrees, that half way around the circumference of a circle. And 360 degrees is one complete circle, or a circumference. That's what you asked about. The question is essentially, "How many radii in a circumference?" Circumference (C) equal pi times diameter (d) or is equal to 2 times the radius (r) times pi. C = pi * d C = 2 * r * pi (It's usually written 2 * pi * r)


What is circumference if A 64pi?

The circumference of any circle = diameter*pi or 2*pi*radius


What is the ratio of the circumference of a circle to its radius?

The ratio of the circumference of a circle to its radius is 2 pi, or 2 times pi. Pi is approximately 3.14.


What is the circumference of circle if the radius is 48?

The circumference C of any circle is equal to pi*diameter. The diameter is equal to the radius times 2. So, for a circle with radius 48, it has a diameter of 96, and a circumference of 96*3.14=301.44. This of course is using 3.14 as an estimate for pi.


Is circumference radius times pi?

No it is 2*radius*pi or diameter*pi or 2(pi)r