You cannot.
If you rotate the circle around its centre, the lengths of the radius and chord will remain the same but the coordinates of the chord will change.
Unless the chord is the diameter, there is no way to measure the radius of the circle. This is because the radius is in no way dependent on chord length since circles have infinite amount of chord lengths.
r = known radius x = known arc length --------------------------- C (circumference of circle) = 2 * PI * r A (angle of chord in degrees) = x / C * 360 L (length of chord) = r * sin(A/2) * 2
You can use the cosine rule to calculate the central angle.
If the central angle is 70 and the radius is 8cm, how do you find out the chord lenght?
To find the chord length when the radius is given, you can use the formula: ( L = 2 \times r \times \sin\left(\frac{\theta}{2}\right) ), where ( L ) is the chord length, ( r ) is the radius, and ( \theta ) is the central angle in radians subtended by the chord at the center of the circle. If the angle is not provided, you can also use the relationship involving the distance from the center to the chord (perpendicular distance) to find the chord length.
If you are given a chord length of a circle, unless you are given more information about the chord, you can not determine what the radius of the circle will be. This is because the chord length in a circle can vary from a length of (essentially) 0, up to a length of double the radius (the diameter). The best you can say about the radius if given the chord length, is that the length of the radius is at least as long has half half the chord length.
multiply the chord length and radius and divide by 2
the length is: 2rsin(1/2 theta) where r is the radius and theta is the included angle.
Unless the chord is the diameter, there is no way to measure the radius of the circle. This is because the radius is in no way dependent on chord length since circles have infinite amount of chord lengths.
ON the cad offset the bend radius from the internal radius of the sheet metal part by 40% of the total sheet thickness,and measure the chord length of the radius. that will be the developed length.
r = known radius x = known arc length --------------------------- C (circumference of circle) = 2 * PI * r A (angle of chord in degrees) = x / C * 360 L (length of chord) = r * sin(A/2) * 2
You can use the cosine rule to calculate the central angle.
If the central angle is 70 and the radius is 8cm, how do you find out the chord lenght?
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
longest chord = diameter y = longest chord y = diameter radius = 1/2 diameter therefore, radius = 1/2y
It is the diameter which is twice the radius giving a length of 8 cm
R = radius c = chord length s = curve length c = 2Rsin(s/2R) you can solve for radius by trial and error as this is a transcendental equation