What method will you adopt to measure the volume of a banana? Explain?

Identify incorrect statements among the following and rewrite them with necessary corrections:

a) One square meter is equal to $10,000$ square centimetres.

b) The appropriate unit for reporting the volume of a cylindrical rod is ${\mathrm{cm}}^2$.

c) The appropriate instrument to measure the thickness of a $25$ paisa coin is a tailor's tape.

d) A measuring cylinder can directly measure the volume of solids.

How will you measure the area of your palm using graph paper? Explain?