(a)[2]
Measure the block to the nearest $0.1\,\text{cm}$ and work out the area $A$ of its largest face.
(b)[1]
State the block's weight $W$.
(c)[1]
Use $p = \frac{W}{A}$ to work out the pressure $p$ produced by the block's weight on the table.
(d)[1]
Another student claims that the actual pressure due to the weight of the block on the table is higher than the value found in (c). Give one practical reason for this.