tan A = (sin A) / (cos A) tan (A)= opposite side length/adjacent side length A is an angle measurement; amount of degrees or radians. If a line is tangent to a curve, it only touches the curve at one point. looks like )| but the line is touching the curve. In a circle, the tangent line touches the circle at one point and is perpinducular to the circle's radius if it is touching that same point.
A line that goes through a circle is a secant line. (Remember that a line is infinitely long.) Anyline that passes through a circle is a secant line, whether it passes through the center of the circle or not. Compare this to a line segment with endpoints on the circumference of a circle. That segment is called a cord of that circle. If the cord of a circle passes through the center of that circle, it is a diameter of that circle, which is the longest cord of the circle.
It is a vertical line touching a horizontal line
If you are referring to the segment passing through the center of the circle and touching the circumference of the circle then it's the diameter of the circle.There can be infinite diameters drawn inside a circle.
The line stands for "on" and the circle stands for "off".
A tangent line.
A tangent
A straight line touching the circumference of circle at one point is a tangent
Tangent
tangent
Such a line is called a tangent line or a tangent to the circle. [Tangent is Latin for touching-- a tangent line touches the circle at just one point. ]
Look, the tangential line is touching a semi circle.
Picture this. A straight, vertical line (The Elder Wand) . A circle (The Ressurection Stone) is at the based of the line so that the bottom of the circle is touching the bottom of the line, and the topof the circle is rougly halfway up the line. This image is then enclosed in a triangle (The Cloak of Invisibility), so that the top corner is touching the top of the line, the two sidelengths touch the sides of the circle (if that makes sense) and the bottom length touches the bottom of the circle.
tangent
tan A = (sin A) / (cos A) tan (A)= opposite side length/adjacent side length A is an angle measurement; amount of degrees or radians. If a line is tangent to a curve, it only touches the curve at one point. looks like )| but the line is touching the curve. In a circle, the tangent line touches the circle at one point and is perpinducular to the circle's radius if it is touching that same point.
The diameter is the length of a line touching both sides of the circle and passing through the centre. The radius is the length of a line from the centre to touching the circle, and is half the length of the diameter, the diameter then is twice the length of the radius > diameter = radius * 2 = 32 * 2 = 64
A circle doesn't really have an edge, per se. But I think what you are referring to is a tangent.A tangent is a line that touches the perimeter of the circle at only one point.(see related link)