Question 1

How do you calculate the area of an ellipse?

Accepted Answer

Multiply Pi (~3.14159) by the semi-major axis (a) and the semi-minor axis (b) (Area = π × a × b).

Question 2

What is the difference between a circle and an ellipse?

Accepted Answer

A circle has a single constant radius, whereas an ellipse has two different axes: the longer semi-major axis and the shorter semi-minor axis.

Question 3

How is the perimeter of an ellipse calculated?

Accepted Answer

Unlike circle circumference, an ellipse perimeter cannot be solved exactly using simple formulas. We use Ramanujan's high-accuracy approximation.

Ellipse Area Calculator