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What do chords do?
a chord lets people play three or more notes in a note
What is the Formula for calculating chord length?
Assume you mean the chord of a circle? If the angle between the two radii from the ends of the chord is A, and the radius of the circle is R, the chord length L will be L = 2RsinA/2. You can prove this easily by joining the point bisecting the chord to the centre, you then have two rightangled triangles, with an included angle of A/2, and an opposite side of L/2. So sinA/2 = L/2R.
How do you find the radius of a circle if you know the length of a chord and the shortest distance from the center of the chord to the circle?
Imagine if you will a circle with a chord drawn through it and a line running from the center of that chord to the center of the circle. That line is necessarily perpendicular to the chord. This means you have a right triangle whose hypotenuse is the radius of the circle. The radius is thus given by: r = sqrt{(1/2 chord length)^2 + (length of perpendicular line)^2} The actual formula to find the radius is as follows: r= C squared/8a + a/2, where C is the chord length, and a is the distance from center point of the chord to the circle , and a and C form an angle of 90 degrees. the entire formula before simplification is r = sqrt {(1/2 C)^2 + (r-a)^2}
What is a line segment that contains 2 points on a circle?
It is a chord and the largest chord in a circle is its diameter
What of a circle is a line segment from the center of the circle to any point on the circle?
This describes a chord. A chord is a mathematical term on a part of the circle. A chord uses any 2 points in a circle, not matter if they are away from the diameter line or not, they just have to be inside the circle. If you connect the 2 points you have chosen, it gives you a chord. A chord can look like a line segment. .______. This is a line segment, on the left.
