What ARE the ways of measuring the volume of an irregular shaped object?

Question

What ARE the ways of measuring the volume of an irregular shaped object? I need it as soon as now. Please. If you know a link to some where give it. The one who gives the two CORRECT ways will be given the Best Answer..

Answer 1

One is displacement of water. As 1ml=1cm^3

The other...hmm perhaps mass/density?

Answer 2

pour water in the  irregular  shape and  fill it  into  a measuring beaker or you  drop the  shape into  a  container of  water  and take the  displacement  of the   wather  and  follow  up with you  physics  to  settle  for the  volume

achemedes principle

Answer 3

You can measure the volume of an irregular object by the method of water displacement. You will need a measuring cup or graduated cylinder with water. First record the volume of the water in the cup. Then insert the irregular object and record the new volume. The volume of the irregular object is the difference between these two measurements.

The other way: same.

Answer 4

This is how Archimedes determined if the king's crown was pure gold or alloyed. When he figured it out he got so excited he jumped out of the bathtub and ran naked down the street shouting "Eureka!" meaning 'I found it.'