The applet demonstrates the following:
An ellipse is the set of all points in the plane, the sum of whose distances to two fixed points (foci) remains constant.
Select the length of a piece of string by dragging the endpoints of the blue segment.
Drag the orange point to select the position of the focus F1 along the x-Axis or the y-Axis. The other focus F2 is symmetrical to F1 with respect to
Another post from Tap Into Teen Minds. Enjoy!
There are candies on the table. How many candies should each of four people receive if you know how many there are in two thirds of the whole?
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