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
A parabola refers to a symmetrical open plane curve that is formed  by the intersection of the cone with a plane that is parallel to  its side. The curve on the other hand râ¦efers to a line that  gradually deviates from being straight for some or all of its  length.