I would like to know how to solve this problem.

There are two circles, \(A\) and \(B\), drawn on a number plane such that Circle \(A\)'s diameter is on the *x*-axis on points \((0, 0)\) and \((40, 0)\) and Circle \(B\)'s diameter is on the *y*-axis on points \((0, 0)\) and \((0, 40)\). What is the area of the intersecting regions of the circle?

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TopNewestHint: add the areas of two quarter circles, then subtract your overcounting. – Daniel Liu · 2 years, 8 months ago

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