(Nerd)

I would like to know how to calculate the area of ellipse and its total length from the given data..

Rx-x radius

Ry-y radius

start angle

end angle

Center of Ellipse (x,y)

can anyone help me pleezzz.........

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- Mar 29th 2009, 11:37 PMrameshadoorarea of ellipse
(Nerd)

I would like to know how to calculate the area of ellipse and its total length from the given data..

Rx-x radius

Ry-y radius

start angle

end angle

Center of Ellipse (x,y)

can anyone help me pleezzz......... - Mar 29th 2009, 11:52 PMEmpSci
The area of the ellipse is simply pi times the multiplication of the two axes:

Area = pi*(Rx-x)*(Ry-y).

I don't know what you mean by start or end angle and total length of ellipse, but I am assuming you are referring to the angle**t**formed the by the line from the center to the circumference. Then the perimeter of the ellipse is:

4*(Rx-x)*INTEGRAL_{0 to pi/2}[sqrt**(**1-((Rx-x)^2-(Ry-y)^2)/(Rx-x)^2 * sin(t)**)*** dt]. - Apr 1st 2009, 10:22 PMrameshadoorArea and perimeter of elliptical arc
I had get this reading from an autoCAD image (civil Plan)

Center of Ellipse: X , Y

Start Angle: sa

End Angle: ea

Rx: rx

Ry: ry

these are the parameter which i have. Could any one help me to find the area and perimeter.This to apply in software program