(64−(8π+4π))−(8π−(4(tan^(−1) 2+4tan^(−1) (1/2)−2)+8(π−2)))−(64−(16π+8π−16(tan^(−1) 2+4tan^(−1) (1/2)−2)))−(3.2+2+(32tan^(−1) ((4.8)/(6.4))−32sin tan^(−1) ((4.8)/(6.4)))−π)+4(tan^(−1) 2+4tan^(−1) (1/2)−2)