(a(i))[2]
A triangular prism is shown in the diagram. Calculate the volume of the prism. State the units for your answer.
(a(ii))[3]
Show that $AC = 14.0\text{ cm}$, to $3$ significant figures.
(a(iii))[5]
Calculate the total surface area of the prism.
(b)[4]
The diagram shows a cuboid with a square base. Its height is $8\text{ cm}$. Its volume is $98\text{ cm}^3$. Calculate $PQ$.