(a(i))[2]
The diagram shows part of an $n$-sided regular polygon where $\angle DCF = \angle EFC = 24^{\circ}$. Find the value of $n$.
(a(ii))[2]
Find the value of $\angle HFG$.
(b(i))[3]
Show that triangle $PQS$ is similar to triangle $TQX$. Give a reason for every statement you make.
(b(ii))[1]
Find the ratio of $SX$ to $SQ$.
(b(iii))[2]
Find the ratio area of triangle $TQX$ : area of parallelogram $PQRS$.