150 157 22 20° F 1.1 Calculate, with reasons, the size of: 1.1.1 0. 1.1.2 D₁ Be 1.1.3 Ć₂ (2) 1.1.4 D (4) 1.2 It is given that OF=√√3y and EC=2x. The area of OECF is - Determine the length of OE in terms of x and y. 2 A=L2Y B 32 = (5) [14]​