diameter

A secant line is a line that intersects a circle at two points. Every secant line, therefore, contains a chord of the circle it intersects.

A line that intersects a circle in two points is called a secant line. Below, /begin{align*}/overleftrightarrow{AB}/end{align*} is a secant. When two secants or a tangent and a secant are drawn, they can interact in four ways. In each case, arcs, angles and line segments have special relationships.

The secant of the Circle A straight line that intersects a circle in two points is called a secant line. A chord is the line segment that joins two distinct points of the circle. A chord is in a unique secant line and every secant line defines a unique chord.

The secant of x is 1 divided by the cosine of x: sec x = 1 cos x , and the cosecant of x is defined to be 1 divided by the sine of x: csc x = 1 sin x .

Tangent to a Circle is a straight line that touches the circle at any one point or only one point to the circle, that point is called tangency. At the tangency point, the tangent of the circle will be perpendicular to the radius of the circle.

In Euclidean plane geometry, a tangent line to a circle is a line that touches the circle at exactly one point, never entering the circle’s interior.

Circle is the locus of points equidistant from a given point, which is the centre of the circle. And, tangent is the line which intersects a circle at one point only. on these points which touches at only one point. Hence, a circle can have infinite tangents.

Method to Calculate Radius To calculate the radius of an arc, take the height — “H” — of the arc and divide it by two. Call the result “C.” Now take the width — “W” — of the arc and square it by multiplying it by itself.

The center of a circle is the point equidistant from the points on the edge. Similarly the center of a sphere is the point equidistant from the points on the surface, and the center of a line segment is the midpoint of the two ends.

(x−h)2+(y−k)2=r2 ( x – h ) 2 + ( y – k ) 2 = r 2 is the equation form for a circle with r radius and (h,k) as the center point. In this case, r=√26 and the center point is (2,7) . The equation for the circle is (x−(2))2+(y−(7))2=(√26)2 ( x – ( 2 ) ) 2 + ( y – ( 7 ) ) 2 = ( 26 ) 2 .