Search Results for “Parabola”
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Parabola Tangent Circumcircle
3 tangents of a parabola form a triangle. Its circumcircle passes through the parabola's focus.![](/apps/thumbs/306.png)
Parabola and catenary
There isn't much difference between a catenary and its approximate parabola. The catenary is the correct model of an ideal chain. But the parabola fits fairly well too.![](/apps/thumbs/304.png)
Rolling Parabola
If you roll a parabola along the ground, what curve does its focus trace out? It might look like a parabola, but is it?![](/apps/thumbs/323.png)
Polar Point Parabola
The polar point of a line in a parabola is a common point to the chords defined by the common tangents through the points on the line. (Go to Full Screen if the green points won’t drag)![](/apps/thumbs/347.png)
Focus Directrix Parabola
Try to set the focus and directrix of a parabola so it matches one with a given equation![](/apps/thumbs/320.png)
Parabola Polar Line
The locus of the intersection of tangents at the ends of chords of a parabola through a given fixed point is a straight line. This is called the polar line of the given point![](/apps/thumbs/298.png)
Parabola Parametrization
Investigate the characteristics of the standard parametrization of a parabola.![](/apps/thumbs/296.png)
Parabola Subnormal
The subnormal for a given parabola is constant, and closely related to the focal length.![](/apps/thumbs/303.png)