what is downward curve ?
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Downward curve: A curve that turns in the downward direction is called a downward curve. It is also known as a concave downward. Concave Downward also called or “Convex Upward”. ... Simple Curve: A simple curve changes direction but does not cross itself while changing direction.
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: A curve that turns in the downward direction is called a downward curve. It is also known as a concave downward. Concave Downward also called or “Convex Upward”. ... Simple Curve: A simple curve changes direction but does not cross itself while changing direction
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