Q: What does the r in the circumference formula?

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the formula for the circumference isc=2(pi)rSince you already have the circumference, just plug it into the formula, and solve:3=2(pi)r divide by 2pi0.47746483 = r

It isn't. That is the formula for the AREA of a circle!

2 pi r and pi r 2

A=pi times r times r

That's the formula for the circumference of a circle, when you know the radius. What you do is multiply all three together. Pi is approximately 3.14, and r stands for the radius. The result of the multiplication is the circumference.

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The formula for the circumference of a circle is C = 2πr, where C is the circumference and r is the radius of the circle.

it is the formula of circumference of circle

The radius of a circle with a circumference of 1000m is approximately 159.15 meters. This can be found using the formula C = 2πr, where C is the circumference and r is the radius. Rearranging the formula to solve for r gives r = C / (2π). Substituting the given circumference into the formula will give you the radius.

No, the formula for a circumference of a circle is 2(pie)r For example, if r is 6, the the circumference is 12(pie)

The circumference is the distance around a circle. The formula for circumference is 2*pi*r. If we say pi = 3.14 and r = .25, we plug these numbers into our formula, and get an answer of about 1.57.

the formula for the circumference isc=2(pi)rSince you already have the circumference, just plug it into the formula, and solve:3=2(pi)r divide by 2pi0.47746483 = r

circumference=2 times (pi) times r: where r is the radiusC=2pir

2 pi r = circumference. 1/2 of that is pi x r. pi is 3.142

The way to find the circumference is either 2 x pi x r, or pi x d.So rearrange the formula:circumference = 2 x pi x rcircumference / 2 x pi = rSo take the circumference, and divide it by 2 pi and you have the radius.A:Using the formula for circumference which is 2(pi)r solve for r. Now you have radius = circumference/(2pi). The formula for area of a circle is (pi)r^2. Substituting r with circumference/(2pi) you get area = pi(circumference/(2pi))^2. When you simplify you get area = circumference^2/(4pi).

r = C/2π

It isn't. That is the formula for the AREA of a circle!

2 pi r and pi r 2