(a(i))[2]
From the diagram, measure the cup's height $h$ and its diameters $D$ and $d$.
(a(ii))[1]
Calculate the average diameter $d_A$ of the cup from your readings in (a)(i) using the equation $d_A = \frac{D + d}{2}$.
(a(iii))[1]
Calculate a value for the cup's capacity $V_1$ using $V_1 = \frac{\pi d_A^2 h}{4}$.
(b(i))[1]
Calculate the average circumference $C$ for the cup.
(b(ii))[1]
Use the value of $h$ from (a)(i) together with $C$ from (b)(i) to calculate the cup's capacity $V_2$ using the equation $V_2 = \frac{C^2 h}{4\pi}$.
(c(i))[1]
State the new reading $R$.
(c(ii))[1]
Calculate the volume of water $V_3$ in the cup. Show your working.
(d)[2]
State one reason why the volume found in method 2 and one reason why the volume found in method 3 are not accurate.