A curve.
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 circle doesn't have line segments. It is a curve, not made up of straight lines.A circle doesn't have line segments. It is a curve, not made up of straight lines.A circle doesn't have line segments. It is a curve, not made up of straight lines.A circle doesn't have line segments. It is a curve, not made up of straight lines.
A tangent line.
A chord.
A curve.
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 at that point where a straight line just touches a curve and a secant line when the straight line bisects the curve.
In geometry a straight line that touches a curve is called a tangent.
A curved line is a line that is not straight.
A circle doesn't have line segments. It is a curve, not made up of straight lines.A circle doesn't have line segments. It is a curve, not made up of straight lines.A circle doesn't have line segments. It is a curve, not made up of straight lines.A circle doesn't have line segments. It is a curve, not made up of straight lines.
It is a straight line that touches the curve such that the line is perpendicular to the radius of the curve at the point of contact.
A tangent line.
Curve is one possible opposite of straight if straight refers to line that does not bend. Other meanings of straight like honest, heterosexual, and direct have different opposites than curve.
line straight like straight line vertical horizontal curve
Tangent:In geometry, the tangent line (or simply the tangent) is a curve at a given point and is the straight line that "just touches" the curve at that point. As it passes through the point where the tangent line and the curve meet the tangent line is "going in the same direction" as the curve, and in this sense it is the best straight-line approximation to the curve at that point.Chord:A chord of a curve is a geometric line segment whose endpoints both lie on the outside of the circle.
You had us baffled at "straight curve" . Could you mean if you start at the north pole, walk in a straight line, you will eventually get back to the north pole and round in a circle. Hence a straight line but no end points.