... is called a Great Circle arc.
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.
In geometry a straight line that touches a curve is called a tangent.
A tangent at that point where a straight line just touches a curve and a secant line when the straight line bisects the curve.
If you translate (move without rotation) a copy of the line towards the curve, the first point where the line touches the curve (the tangent to the curve with the slope of the original line) will be the point on the curve closest to the line. Draw a connecting line from this tangent point to the original line, intersecting that original line at right angles. Measure the connecting segment. It is the shortest distance. Vector analysis will give a mathematically strict solution, I do not have the ability to explain this in sufficient detail.
... is called a Great Circle arc.
how i do curve line
Look at the route on a globe, the straight line route is actually longer.
it's a curve and a line but not a curve ANDa line
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 curved line is a line that is not straight.
Between the two point line to say that is both a curve and there are clear.
is it a line that is slanted
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.
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.
In geometry a straight line that touches a curve is called a tangent.