A tangent line touches a curve or the circumference of a circle at just one point.
A tangent line.
It is called a tangent.
The diameter of a circle or sphere is the length of a straight line that touches both sides and passes through the centre.
A straight line that intersects a circle or curve at two points, but which has both end points outside the circle or curve is called a secant. A straight line that links two points on a circle or curve is called a chord. A straight line which touches a circle or curve at one point is called a tangent. A straight line that cuts a circle or curve at one point is a straight line.* For moving diagrams see Related links below this box.
A tangent is always perpendicular to the radius of a circle. A radius is a straight line going from the center of the circle to the circumference (edge) of the circle. A tangent is a straight line outside the circle that touched the circle at one (and only one) point. When a tangent touches the outside edge of the circle at the same point where a radius touches the edge of the circle, the angle between the radius and tangent line is 90 degrees meaning they are perpendicular.
It is a tangent line
The term you're looking for is "tangent." In geometry, a tangent is a straight line that touches a curve at a single point, known as the point of tangency, and continues on without crossing the curve at that point. Tangents are often discussed in relation to circles and other curves, where they represent the instantaneous direction of the curve at the point of contact.
A tangent line.
Tangent
A straight line that touches a curve but continues without crossing it is called a "tangent." At the point of contact, the tangent line has the same slope as the curve, indicating that it just grazes the curve rather than intersecting it.
A tangent, but it (a) has nothing to do with croosing (whatever that may mean); and (b) while it does not cross the curve in the neighbourhood of the point of contact - there is no restriction on it crossing the curve at a distance.
In geometry a straight line that touches a curve is called a tangent.
tangent
A tangent is a straight line that touches the circumference of a circle at a given point
In geometry a Tangent is a straight line that just touches the circumference of a circle.
tangent
if it touches at three points it is a straight line. Since it is also an asymptote, it will be a straight horizontal line (zero slope)