(a(i))[2]
Find $\angle G\hat{E}O$ in terms of $y$.
(a(ii))[2]
Find $\angle GCX$ in terms of $y$.
(a(iii))[2]
Find $\angle D\hat{A}B$ in terms of $y$.
(b)[1]
Triangle $EGC$ is congruent to triangle ………… . Complete the sentence.
(c)[2]
Prove that triangle $ADC$ is similar to triangle $OGC$.
(d)[1]
What special type of quadrilateral does $AOGD$ make?
(e(i))[1]
Find the ratio area of triangle $OGC$ : area of triangle $ADC$.
(e(ii))[1]
Find the ratio area of triangle $OGC$ : area of quadrilateral $ABCD$.