Khan Academy Static

We're used to finding the area under curves in the Cartesian plane, but integration can be used to find area defined by polar curves too.

5289_Evaluating_definite_integral_with_calculator.html

5287_Area_enclosed_by_cardioid.html

5288_Area_between_two_polar_graphs.html

5286_Area_enclosed_by_a_polar_formula.html