Conceptually, the radius is the distance from the center of the circle to any point on its edge.
If you know the circumference of the circle, then the radius is the circumference divided by 2 times pi.
The circumfrence would double Example : C of 5 cm radius circle = 3.14 *2*5 C=3.14 C of 10cm radius circle = 3.14*2*10 C =62.8
Circumference of a circle equals Pi times the double the radius C = 2 x 3.14 x radius C= 2 x 3.14 x 20 C = 125.6 The circumference of a circle with a 20 foot radius is 125.6 feet.
If a circle has radius r, then the area of the circle is pi r2, pi being about 3.14159. I beleive the function you are looking for is A(c)=c/2*r
C = 56.549m
C = 23.876
Given the circumference of a circle the radius is: r = C / 2xPI So the radius of your circle is 326.7451 ft
The circumfrence would double Example : C of 5 cm radius circle = 3.14 *2*5 C=3.14 C of 10cm radius circle = 3.14*2*10 C =62.8
Remember the circle eq'n.;- C = 2 pi r By algebraic rearrangement r = C / (2*pi)
The relationship between the chord and the radius of the circle is Length of the chord = 2r sin(c/2) where r = radius of the circle and c = angle subtended at the center by the chord
The formual for area is: A = πr2 so the area of circle A (assuming π=3.142) is 28.278cm2, and the area of circle B is 50.272cm2.Their combined area of 78.55cm2 is the area of circle C.The formula for radius is: square root of A/π78.55 ÷ 3.142 = 25, the square root of 25 is 5The radius of circle C is 5cmArea of Circle A = π32 = 9πArea of Circle B = π42 = 16πArea of Circle C = 9π + 16π = 25πLet r = radius of Circle C thenπr2 = 25π : r2 = 25 : r = 5.
int radius = 2; int output; radius = radius * 2; output = radius * Math.PI; Console.WriteLine(output);
Circumference of a circle equals Pi times the double the radius C = 2 x 3.14 x radius C= 2 x 3.14 x 20 C = 125.6 The circumference of a circle with a 20 foot radius is 125.6 feet.
c=2*pie*r c= circumference r= radius.
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)
The formula for the circumference of a circle is C = 2πr, where C is the circumference and r is the radius of the circle.
If a circle has radius r, then the area of the circle is pi r2, pi being about 3.14159. I beleive the function you are looking for is A(c)=c/2*r
The circumference of a circle can be calculated using the formula C = 2πr, where r is the radius of the circle. In this case, if the radius is 4 inches, then the circumference would be C = 2 x π x 4 = 8π inches, or approximately 25.13 inches.