Help Calculating of mass

[Kuroidonian]

hello guys, pano kukunin yung mass ng ganitong object? m=density * volume
pero paano kukunin yung volume ng ganitong object?

 

[_Awe_]

Kung given yung mga dimensions siguro, kung common geometric shapes yan.
O kaya by integration siguro kung given yung limits at equation ng shape.
O kaya naman ay yung displaced volume siguro, kung sa buoyancy