Paradox in deriving the area of an ellipse
6151
Evaluating $\int_a^b \frac12 r^2\ \mathrm d\theta$ to find the area of an ellipse
24419
Why area of a triangle is negative based on naming order?
10515
Area of an irregular polygon
61641
Equations of lines tangent to an ellipse
10772
Equilateral triangle inscribed in a ellipse
133567
Area of a triangle in terms of areas of certain subtriangles
3016
How to determine the arc length of ellipse?
55491
Find the area of largest rectangle that can be inscribed in an ellipse
4343
Conformal parametrization of an ellipse
116283
How to properly interpret a seemingly contradictory result in Mathematica?
61585
Why is area of a surface of revolution integral $2\pi y~ds$? not '$dx$'?
132759
Area of intersection between two circles
71074
The locus of the intersection point of two perpendicular tangents to a given ellipse
39335
Enlarging an ellipses along normal direction
131812
Does a sphere projected into 2D space always result in an ellipse?
101339
Area of a cyclic polygon maximum when it is a regular polygon
13954
Calculating the length of the semi-major axis from the general equation of an ellipse