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r = d * 0.5, r = C / (2 * 3.14), r = √(A / 3.14)
The radius of a circle when the diameter is known:
d = 2 * r
d is the diameter of the circle
r is the radius of the circle
r = d / 2 = d * 0.5
The radius of a circle when the circumference is known:
C=2πr
C is the circumference of the circle
π is a constant approximately equal to 3.14
r = C / (2 * π) = C / (2 * 3.14)
The radius of a circle when the area is known:
A=π(r)^2
A is the area of the circle
r = √(A / π) = √(A / 3.14)
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How do you solve Circle Area conjecture?
divide the radius by Pi2
What is the radius of a circle if the area is 64?
The area of a circle is (pi)(r^2). Set this equal to 64 and solve for the radius. r = sqrt(64/pi)
How do solve circumference?
The circumference of a circle is 2*pi*radius or diameter*pi
What is the diameter of a circle that is 169 pi square yards?
Use the formula for the circle: area = pi x radius squared. Replace the area, and solve for the radius. Multiply the radius by 2 to get the diameter.
How do you solve the circle?
The formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle.
How do you find circumfrenece when there is area?
If you are referring to a circle, calculate the radius as an intermediate step. Area of a circle = pi x radius2 (replace the value for area, and solve for radius). Circumference of a circle = 2 x pi x radius (once you have figured out the radius, use this formula).
How do you solve the radius and diameter of the circle area given is 616m sq?
Radius of circle is the square root of 616/pi = 14m to nearest whole numberDiameter of circle is 2 times 14 = 28m
How do you find the radius of a circle when the area is given?
-- Take the formula for the area of the circle in terms of the radius . . . A = (pi) R2-- Solve that formula for 'R'. You'll then have a formula for the radius in terms of the area,which is exactly what you're looking for.
Is the radius of a circle a function of its area?
You can certainly express the radius as a function of its area, yes. If the area is known, you can solve the formula for the area of the circle to uniquely get the radius. (The quadratic equation has two solutions; you will of course choose the positive solution for the radius.)
The area of circle is 1024 pie square meter what is the diameter?
Solve the equation for the area of the circle (area = pi x radius2) for radius. Multiply the radius by 2 to obtain the diameter.
How do you find the radius when you only have area of a circle?
Use the formula area = pi x radius2. If you replace everything you know, you can solve for the radius.
What is the radius and diameter of a circle area 530.66 cm2?
Use the formula for the area of a circle (A = pi x radius2). Replace the data you know (the area), and solve for radius. Then, you can double this radius to get the diameter.
