Wiki User
∙ 14y agoImagine 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}
Wiki User
∙ 14y agoI'm not sure what you're referring to however: the radius is from the center point to the outer edge of the circle the diameter is the length from one side of the circle to the other and the circumference is the distance all the way round a circle hope this helps :)
Length of chord, l = 2*sqrt(r2- d2) where r is the radius of the circle and d is the perpendicular distance of the chord from the centre of the circle. l, r and d are measured in the same units of length.
The diameter of a circle is the length of a line passing through the center of a circle that connects two points on the circumference. The circumference is the distance around the edge of a circle.
This is true. The answer is obvious if you think about it the following way: an equilateral triangle has three equal sides, and every point on the circumference of a circle is the same distance from the center of the circle. Therefore, it is safe to assume that the circle will touch the midpoint of each side of the triangle. It also means that the center of the circle will be in the center of the triangle. Therefore, the radius of the circle will travel from the center of the triangle to the midpoint of one of the sides. This will cover the distance of half the triangle's median.
The radius of a circle is the length of the line from the center of the circle to any point on its edge.
The diameter of a circle is 2 times the radius. The radius of a circle is the distance from any point on the circle to the center of the circle, and the diameter is the distance from one side of the circle to the opposite side, passing through the center.
A radius is the distance from the center of a circle, to the border. In a circle, all radii have the same length.
The Circumference of a circle is the distance around the outside of the circle. The Radius is the length of a line from the Center out to the Edge and ... The Diameter is the length of a line that passes through the Center from one Edge of the circle to the Edge on the opposite side.
The distance from the center of a circle to any point on the circle is called the radius of the circle. The radius is a line segment that starts at the center of the circle and ends at any point on the circle. It is always a straight line and is always perpendicular to the circumference of the circle. The radius is half the diameter of the circle, which is the distance across the circle through the center. The diameter of a circle is always twice the length of the radius. My recommendation ʜᴛᴛᴘꜱ://ᴡᴡᴡ.ᴅɪɢɪꜱᴛᴏʀᴇ24.ᴄᴏᴍ/ʀᴇᴅɪʀ/372576/ꜱᴀɪᴋɪʀᴀɴ21ᴍ/
The shortest distance is displacement and total distance is length.
Area of a circle = pi R2 'R' is the length of the radius of the circle. That's the distance from the center of the circle to any point on the circle.
All the radii of a circle are of equal length. The radius is the distance from the center of the circle to the out edge. Having equal radii is what defines a circle.
I'm not sure what you're referring to however: the radius is from the center point to the outer edge of the circle the diameter is the length from one side of the circle to the other and the circumference is the distance all the way round a circle hope this helps :)
Examples of a radius in math include the line segment from the center to a point on a circle, the distance from the center to the edge of a sphere, or the distance from the center to a point on a cone's base. Non-examples could be any line that doesn't go from the center of a circle to its edge or any measurement that doesn't start at the center of a sphere and reach its surface.
Length of chord, l = 2*sqrt(r2- d2) where r is the radius of the circle and d is the perpendicular distance of the chord from the centre of the circle. l, r and d are measured in the same units of length.
The distance from a circle to its center (the dot in the middle) is called 'the radius'. The distance from a circle to a point opposite is called 'the diameter'. The diameter is twice the length of the radius.
The diameter of a circle is the length of a line passing through the center of a circle that connects two points on the circumference. The circumference is the distance around the edge of a circle.