Define a circle tangent to the -axis by:

Sketch this graph in polar coordinates and compute the area of the radial set.

The sketch is as follows:

Then, we compute the area,

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Stumbling Robot

A Fraction of a Dot
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Sketch a circle tangent to the y-axis and compute its area from -π/2 to π/2

Define a circle tangent to the -axis by:

Sketch this graph in polar coordinates and compute the area of the radial set.

The sketch is as follows:

Then, we compute the area,