Secant line 3-secants of a finite set of points. Finiteness of the set of points is not essential in this definition, as long as each line can intersect the set in only a finite number of points. Secant line In geometry, a secant of a curve is a line that intersects the curve in at least two (distinct) points. The word "secant" comes from the Latin word "secare", meaning "to cut". In the case of a circle, a secant will intersect the circle in exactly two points and a chord is the line segment determined by these two points, that is the
Mohr's circle stress formula_95 is the abscissa of the centre formula_85, given by and the length of the radius formula_98 of the circle (based on the equation of a circle passing through two points), is given by The maximum and minimum shear stresses correspond to the ordinates of the highest and lowest points on the circle, respectively. These points are located at the intersection of the circle with the vertical line passing through the center of the circle, formula_85. Thus, the magnitude of the maximum and minimum shear stresses are equal to the value of the circle's radius formula_98 As mentioned before,