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What is the radius if the circumference is 3 inches?
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
How do you calculate the circumference of a circle if you have the area is 8.2 com squared?
To calculate the circumference of a circle from its area, first use the formula for the area ( A = \pi r^2 ). Given that the area is 8.2 cm², you can solve for the radius ( r ) by rearranging the formula: ( r = \sqrt{\frac{A}{\pi}} ). Once you find the radius, use the circumference formula ( C = 2\pi r ) to calculate the circumference.
What i the radius when circumference is 75 cm?
To find the radius when the circumference is 75 cm, you can use the formula for circumference: ( C = 2\pi r ). Rearranging the formula to solve for the radius ( r ) gives ( r = \frac{C}{2\pi} ). Substituting the circumference, you get ( r = \frac{75}{2\pi} ), which is approximately 11.94 cm.
What is the formula for circumference using radius?
The formula for the circumference ( C ) of a circle using the radius ( r ) is given by ( C = 2\pi r ), where ( \pi ) is a mathematical constant approximately equal to 3.14159. This formula indicates that the circumference is directly proportional to the radius, meaning that as the radius increases, the circumference also increases.
Why is it pie r squared is the exactly formula for circumference?
It isn't. That is the formula for the AREA of a circle!
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 2pi r?
it is the formula of circumference of circle
What is the radius of a circle with a circumference of 1000m?
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.
Is the circumference 3 times 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)
What is the circumference of a circle of the radius of .25?
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.
What is the radius if the circumference is 3 inches?
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
What is the formula for the circumference of a circle with the radius of 4?
circumference=2 times (pi) times r: where r is the radiusC=2pir
How do you calculate the circumference of a circle if you have the area is 8.2 com squared?
To calculate the circumference of a circle from its area, first use the formula for the area ( A = \pi r^2 ). Given that the area is 8.2 cm², you can solve for the radius ( r ) by rearranging the formula: ( r = \sqrt{\frac{A}{\pi}} ). Once you find the radius, use the circumference formula ( C = 2\pi r ) to calculate the circumference.
What is the formula for finding the circumference of a semicircle?
2 pi r = circumference. 1/2 of that is pi x r. pi is 3.142
What i the radius when circumference is 75 cm?
To find the radius when the circumference is 75 cm, you can use the formula for circumference: ( C = 2\pi r ). Rearranging the formula to solve for the radius ( r ) gives ( r = \frac{C}{2\pi} ). Substituting the circumference, you get ( r = \frac{75}{2\pi} ), which is approximately 11.94 cm.
What is the formula for circumference using radius?
The formula for the circumference ( C ) of a circle using the radius ( r ) is given by ( C = 2\pi r ), where ( \pi ) is a mathematical constant approximately equal to 3.14159. This formula indicates that the circumference is directly proportional to the radius, meaning that as the radius increases, the circumference also increases.
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 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).
