Using the digram in 11(b) above, calculate, correct to 3 significant figures, the length of

(i) arc ABC;
(ii) the chord AD.
This question on geometry was not popular with the candidates. Majority of them avoided the question.
In l1(a), some of those who attempted this question failed to extend line CD to meet EF. Hence could not solve it properly.
In l1(b), many candidates could 'apply the circle theorems correctly. Question l1(c) was also satisfactorily handled by candidates who attempted it.