(a(i))[1]
Determine the area of Diagram 4.
(a(ii))[1]
Find the area of Diagram $n$, expressing your answer in terms of $n$.
(b(i))[1]
Work out how many 1 cm lines are needed to draw Diagram 4.
(b(ii))[1]
Which diagram requires 118 lines of length 1 cm?
(c)[6]
Determine the value of $a$ and the value of $b$. Show all your working.