The astroid C is the curve x^(2/3) + y^(2/3) = a^(2/3), where a is a fixed constant. The curve C can be parametrized by x = a cos(3t), y = a sin(3t) where t is in [0, 2π]. Use Green’s Theorem to find an expression for the area of the interior of C. (You do not need to fully solve any integrals.)