1. ## area of ellipse

I would like to know how to calculate the area of ellipse and its total length from the given data..
start angle
end angle
Center of Ellipse (x,y)

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

I would like to know how to calculate the area of ellipse and its total length from the given data..
start angle
end angle
Center of Ellipse (x,y)

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