2 pi radius height. A line that is drawn straight through the midpoint of a circle and that has its end points on the circle border is called the diameter d Half of the diameter or the distance from the midpoint to the circle border is called the radius of the circle r. General Equation of Circle The equation of any conic can be expressed as ax2 2hxy by2 2gx 2fy c 0.
Sinth Tanth and 1 are the heights to the line starting from the x-axis while Costh 1 and Cotth are lengths along the x-axis starting from the origin.
Here are the circle equations. Sinth Tanth and 1 are the heights to the line starting from the x-axis while Costh 1 and Cotth are lengths along the x-axis starting from the origin. X-a2 y-b2 r2. Plot of the six trigonometric functions the unit circle and a line for the angle th 07 radians.