Half of the major axis is termed a semimajor axis. The length of
http://www.chacha.com/question/whatisthesemima...

The maximum amount of an ellipse is called its major axis, and half of this distance is the semi major axis which is usually used to give the size of an ellipse. The semi major axis
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Hello, Okay, let's make it more concrete using the problem below  with the accompanying diagram as a reference. Problem: A student draws a sketch with square units in centimeters
http://en.allexperts.com/q/Astrophysics3368/2012/...

1. Find the distance from the foci to the point. For this example, the distances are 6 and 8. 2. Sum the measures of the distances. For this example, adding 6 to 8 produces 14. 3.
http://www.ehow.com/how_8018424_calculatesemimajo...
