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What is a formula for calculating the radius of a circle when the circumference is known?
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 r
circumference / 2 x pi = r
So 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).
What else can I help you with?
The circumference of a circle is 132cm what is the radius of the circle in centimeters?
To find the radius of a circle when given the circumference, you can use the formula for the circumference of a circle: C = 2πr, where C is the circumference and r is the radius. Given that the circumference is 132 cm, you can plug this value into the formula: 132 = 2πr. To solve for the radius, divide both sides by 2π: r = 132 / (2π) ≈ 21 cm. Therefore, the radius of the circle is approximately 21 centimeters.
What is the formula for finding the radius of a circle when you have the circumference?
Divide the circumference by 2*pi because 2*pi*radius = circumference
What is the radius of a circle with a circumference of 44?
Oh, dude, you're hitting me with some math here. So, if the circumference is 44, we use the formula Circumference = 2 * π * radius. Just divide 44 by 2π (which is about 6.28) to get the radius. So, the radius is approximately 7. Oh, the joys of circles and their sneaky circumference-to-radius conversions!
What is the radius of a circle with a circumference 26 inches?
To find the radius of a circle with a given circumference, you can use the formula: circumference = 2 * π * radius. Given that the circumference is 26 inches, you can plug this value into the formula and solve for the radius. Dividing the circumference by 2π gives you the radius of the circle, which in this case is approximately 4.14 inches.
How can kids remember the formula for circle area and the formula for circle circumference?
Any formula involving a circle will have "pi" in it. Area = pi* radius * radius Circumference = pi * diameter = pi * radius * 2 ( the diameter is just 2 times the radius) Quick way: A = pi r squared C = pi D
If a circumference of a circle is 28.26 inches what is the radius of the circle?
Well, isn't that a happy little question! To find the radius of a circle when you know the circumference, you can use the formula: circumference = 2πr. So, if the circumference is 28.26 inches, you can plug that in and solve for the radius. Just divide the circumference by 2π (which is about 6.28) to find the radius. Happy calculating!
What is the correct formula for calculating the circumference of a circle?
[2 x pie x radius] or [pie x diameter]
If 8 is the radius what is the circumference?
The formula for calculating the circumference of a circle is 2pr where r=radius and p (pie) = 3.1416 so for your question thr circumference = 2 x 3.1416 x 8 = 50.2656
What is the circumference of a circle that has a radius of 6.74 in?
The circumference of a circle with a radius of 6.74 inches is approximately 42.34 inches. The circumference of a circle is found using the circumference formula: Circumference = 2 * π * radius So, all you have to do is plug in the radius into the formula, and approximate π to be 3.14159.
What is the formula for the diameter or a circle?
If you are given the radius of the circle, you can use the formula: diameter = 2*radius If you are given the circumference of the circle, you can use the formula: diameter = circumference/pi
What is the radius of a circle of a circumference of 121?
To find the radius of a circle with a circumference of 121, you can use the formula for the circumference of a circle: C = 2πr, where C is the circumference and r is the radius. Given that the circumference is 121, you can plug this value into the formula and solve for the radius. Dividing 121 by 2π will give you the radius of the circle, which is approximately 19.24 units.
What is the formula for cicumfrance?
The formula for the circumference of a circle is C = 2πr, where C is the circumference and r is the radius of the circle.
What is the formula for finding the radius of a circle when you have the perimeter?
2*pi*radius = perimeter or circumference of a circle radius = circumference/2*pi
If the area of a circle is 201.06 then the circumference of the circle is?
The formula to find the circumference of a circle is C = 2πr, where r is the radius of the circle. To find the circumference, you first need to find the radius by using the formula for the area of a circle (A = πr^2). Given that the area is 201.06, you can solve for the radius. Once you have the radius, you can plug it into the formula C = 2πr to find the circumference.
In the circumference formula for a circle what does 2 get multiplied by?
Circumference of a circle = 2*pi*radius
How do you get the radius of a circle from the circumfrance?
To find the radius of a circle when given the circumference, you should start with the formula for circumference, which is this: circumference = 2*pi*radius To solve for the radius, you would the have to divide the circumference by 2*pi leaving you with a formula like this: radius = circumference/(2*pi) pi≈3.14159
Formula of circumference?
Formula of Circumference of a circle: 3.14*Diameter of the circle. You could also do: 3.14*3.14*radius.
