answersLogoWhite

0


Best Answer

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

User Avatar

Wiki User

โˆ™ 2012-02-24 12:18:52
This answer is:
๐Ÿฆƒ
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 the circumference of a circle diameter times pi or 2 radius times pi?
Write your answer...
Submit
Related questions

What is the circumference of the circle with a 6 inches radius?

The circumference of a circle equals the diameter times pi. The diameter is two times the radius. So a circle with a radius of 6 would have a diameter of 12, and a circumference of 12pi.


How can you find the circumference of a circle with radius or diameter?

The circumference of a circle is equal to its diameter times pi. This is also equal to two times its radius times pi.


How do you figure out the circumference of a circle?

Take "pi" times the diameter of the circle. Pi = 3.14159 (ALWAYS) If circle has a diameter of 10cm, circumference 31.41cm If circle has a radius of 2inches, the circumference is 12.57 inches. (radius = 2, diameter = 4)


Is the circumference of a circle is two times the radius?

The circumference of a circle is 2*pi*radius or pi*diameter


What is the circumference of a circle with a radius of 67.5 meters?

The circumference of a circle it Pi times the diameter. The diameter is 2 times the radius. So the diameter is 135 and Pi is 3.1416. So the circumference is 424.115 metres.


What is the circumference of a circle with the diameter of 16in?

Circumference of a circle is the diameter times pi or 2pi times the radius. Given the diameter, circumference = 16 times pi. So, the circumference is 16pi or 50.265


How do you get the perimeter of circle?

The circumference of a circle is 3.14 times diameter. The diameter is 2 times the radius


What is the circumference of a circle with a diameter of eight feet?

The circumference is pi times twice the radius, and the diameter is twice the radius, so the circumference is pi times the diameter: 25.13278 feet.


What is the relationship between the Radius to the circumference?

The circumference is ALL the way around the circle, while the radius is only HALF way into the middle of the circle. I'm guessing you meant "What is the relationship between the radius of a circle and its circumference?" Radius is half of the diameter of a circle, circumference is PI times diameter; therefore, the circumference is PI times two times radius.


How do you calculate the diameter and the circumference of a circle?

Doubling the radius will give the diameter and times this by pi will give the circumference of the circle.


What formula do you use to find the radius diameter and circumference of a circle?

Radius is diameter divided by two. Diameter is radius times two or circumference divided by pi. Circumference is diameter times pi. Pi is roughly 3.14


How do you figure out circumference and radius?

The radius of a circle is from the middle to the edge, or half the diameter. The circumference is like the perimeter of the circle, and the formula is pi times the diameter.


What is the diameter and circumference of circle?

diameter=radius squared circumference=pi times diameter


What is the circumference of a circle if the radius is 3feet?

Circumference equals pi times the diameter. Since the diameter is twice the length of the radius, the circumference is 6 times pi, or about 18.84 feet.


What is the formula for the radius of a circle when you have the circumference?

well the circumference is equal to pi times the diameter, so all that you have to do is divide the circumference by pi to get the diameter. Then you divide the diameter by two to get the radius.


How do you find the radius of a circle only knowing the circumference?

The equation for finding the circumference of a circle is diameter times pi so reverse it to circumference divided by pi which leaves the diameter. The diameter is twice as big as the radius so divide the diameter by 2 and you will find the radius.


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.


What is the relationship between radius diameter and circumferences of circles?

Radius is the distance from the center point to the edge of the circle. Diameter is the distance straight through the center point and across the circle. Circumference is the distance one full turn around the circle. Radius = 1/2 of the diameter Radius = (circumference) divided by (2 pi) Diameter = 2 times the radius Diameter = (circumference) divided by (pi) Circumference = (pi) times the diameter Circumference = (2 pi) times the radius


Is the formula pie times diameter of circumference?

3.14 x radius squared = the circumference of a circle. 3.14 is PI and the radius is half of the diameter.


How do you find the circumference from the area?

Well, you find the area of a circle by multiplying (pi times radius2) or (pi times radius times radius). The radius is half of the diameter. The formula for the circumference is (pi times diameter). Multiply the radius times 2 to get the diameter. Multiply the diameter times pi.


Given the circumference of a circle what is the radius?

Circumference equals the diameter times pi. The diameter is 2 times radius. Radius equals Circumference divided by pi then divided by 2.


How to find the circumference?

To find the circumference of a circle you multiply the diameter by pi (3.14), the diameter is two times the radius.


What is the circumference of a circle 1 inch times three?

circumference of a circle = diameter*pi or 2*pi*radius


How do you find the area of a circle when you are only given its perimeter?

The Perimeter of a circle is it's circumference. And the circumference is the diameter times pi. So to find the area, divide the circumference by pi, and get the diameter. Then divide the diameter by 2, to get the radius. Then multiply the radius times itself, and multiply that by pi.


What is the formula for finding the diameter of a circle when the circumference is given?

the Circumference is pi times 2 times radius If you know circumference then you can find the radius. once you know the radius just multiply by 2 to find the diameter.