Generally, the equation of a circle is (x-a)2 + (y-b)2 = r2
where (a,b) is the centre of a circle, and r is the radius.
So you can use this equation along with a general line equation, y=mx+c, or using the gradient and finding the equation of the normal.
A tangent of a circle is a straight line that touches the circle at only one point.
The tangent line. A secant line hits the circle in two places and forms a cord, but the tangent line only hits the circle in one point and is always perpendicular to the radius of the circle which exists at that point.
From a given line at a specific point, there can be exactly one circle tangent to the line at that point. This circle will have its center located on the perpendicular line drawn from the point to the line. The radius of the circle will be the distance from the center to the point of tangency.
A tangent line.
A tangent line.
A tangent of a circle is a straight line that touches the circle at only one point.
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. ]
A tangent line touches the circumference of a circle at just one point but it does not intersect the circle.
A tangent is a line that touches a circle at exactly one point. It is perpendicular to the radius at the point of contact.
The tangent line. A secant line hits the circle in two places and forms a cord, but the tangent line only hits the circle in one point and is always perpendicular to the radius of the circle which exists at that point.
If a line intersects a circle at exactly one point, it is a tangent to that circle
A tangent line touches the circumference of a circle exactly at one point.
Definition: a tangent is a line that intersects a circle at exactly one point, the point of intersection is the point of contact or the point of tangency. a tangent is a line that intersects a circle at exactly one point, the point of intersection is the (point of contact) or the **point of tangency**.
A tangent line.
A straight line touching the circumference of circle at one point is a tangent
A tangent line.
Tangent