(a(i))[1]
Explain why triangle $ACB$ has the same area as triangle $ADB$.
(a(ii)(a))[1]
Name a triangle that is equal in area to triangle $HFK$.
(a(ii)(b))[1]
Hence show that triangle $HEK$ has the same area as quadrilateral $HEFG$.
(b(i))[2]
Complete the proof showing that $\angle SMQ = x^\circ$.
(b(ii))[2]
Prove that $\angle PRM$ equals $y^\circ$.
(b(iii))[3]
Complete the following statement, giving your reasons. The triangles $PRM$ and $QSM$ are ................................