Area = pi*a*b where a and b are the semi-major and semi-minor axes.
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That depends on the shape for which you want to calculate the area. A few of the most common ones: circle: a = πr2 square: a = l2 rectangle: a = l×w ellipse: a = π × r1 × r2 triangle: a = bh/2
The formula for an ellipse is (x/a)2 + (y/b)2 = c2 where a and b are the lengths of the semi-axes and c is a constant.
To calculate the area of a half oval, you can use the formula A = (π * r^2) / 2, where A is the area and r is the radius of the oval. First, determine the radius of the half oval. Then, square the radius and multiply it by π. Finally, divide the result by 2 to find the area of the half oval.
No. Both foci are always inside the ellipse, otherwise you don't have an ellipse.
No. Both foci are always inside the ellipse, otherwise you don't have an ellipse.