A crew you’re supervising is installing a circular patio. In order to purchase the materials, they need to compute the area. The
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Answer:
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
Triangle ABC and ADE are congruent triangles by SSS Theorem postulate
therefore
which follows from the usual change of coordinates via
and Jacobian determinant
Swap the order, so that the integral is
and now let