如何量度一隻膠碟的體積?

knowing what material the plastic plate is maded of and surf in the internet about the density of the plastic and take the weight of the plate, then calculate the volume out.

density = weight/volume
volume = weight/density

擺一盆水，例如50cm^3
將隻膠碟放落去，睇過上升水位，減返原本個位，就係體積。
例如: 本身有50cm^3...放落去上升到74cm^3...咁即係隻碟體積係(74-50)=24cm^3