Polar Area

02 Area Bounded by the Lemniscate of Bernoulli r^2 = a^2 cos 2θ

Example 2
Find the area bounded by the lemniscate of Bernoulli r2 = a2 cos 2θ.
 

01 Area Enclosed by r = 2a sin^2 θ

Example 1
Find the area enclosed by r = 2a sin2 θ.
 

Plane Areas in Polar Coordinates | Applications of Integration

The fundamental equation for finding the area enclosed by a curve whose equation is in polar coordinates is...
 

$\displaystyle A = \frac{1}{2}{\int_{\theta_1}^{\theta_2}} r^2 \, d\theta$

 

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