(a)[3]
Write the perimeter of the shaded shape $ABDC$ in the form $(a\pi + b)\,\text{cm}$. Determine the value of $a$ and the value of $b$.
(b(i))[4]
Show that one side of the hexagon is $7.0\,\text{cm}$, correct to 1 decimal place.
(b(ii)(a))[1]
Calculate the volume of the prism.
(b(ii)(b))[2]
Calculate the surface area of the prism.