1.1 KiB
1.1 KiB
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| Area of an Ellipse |
Area of an Ellipse
An ellipse is a 2D shape defined by a continuous curve and two focus points. The sum of the two distances from the foci to any point on the curve is constant.
Terminology
- Foci or focus points - these points are equidistant from the center of the ellipse
- Major axis - the line drawn cutting the ellipse in half and running through both foci
- Minor axis - the line drawn cutting the ellipse in half and running between both foci
Formula
Area of ellipse = (π)(1/2)(major axis)(1/2)(minor axis)
Example
Given major axis = 2 in, minor axis = 7 in find area of the ellipse.
Area = 1/2 * 2 in * 1/2 * 7 in * π = 11 in2