Mathematics · important
Area of full circle by integration for JEE
Determining areas of the regions bounded by simple curves in standard forms
Formula
\[\text{Area of } x^2+y^2=a^2=4\int_0^a \sqrt{a^2-x^2}\,dx=\pi a^2\]
Variables: \(a\) is radius.
Conditions: \(a>0\).
Standard application of definite integrals to area.