Using only a ruler and compass construct ∠ABC = 120 ̊ , where AB = BC = 5 cm.
(i) Mark two points D and E which satisfy the condition that they are equidistant from both BA and Bc.
(ii) In the above figure, join AD, DC, AE and EC. Describe the figures :
(a) AECB, (b) ABD, (c) ABE.