If you have pain or discomfort in your feet or ankle joints, you might have flat feet. Keep reading to find out the difference between a normal foot and a flat foot. A normal arch creates an upward curve in the middle of your foot. Tendons and ligaments in your foot and lower leg help form the arch and stabilize it. Because your feet help support your entire body, having strong arches is important to your bodyâs health. When those tendons and ligaments weaken, your arch collapses.
A parabola (/pÉËraebÉlÉ/ ; pÉËrÃ¦bÉlÉ plural parabolas or, parabolae adjective, parabolic From: greek) ÏÎ±ÏÎ±Î²Î¿Î»Î® is a-two, dimensional-mirror symmetrical, curve which is Approximately-u shaped when oriented as shown in the diagram, below but which can be in any orientation in its. plane
Definition: The locus of all points that are equidistant from a given point (focus). and a given line (directrix). Try this Drag the point P. It will move through all the points equidistant from the focus point and the directrix line. Recall that the definition of locus is the set points that meet some given conditions. In this definition of a parabola, it is the shape created by the points that are the same distance from a given point (call the focus) and a given line (called the directrix)*.