(c) In Figure 4, BD is a straight line. The straight lines AB and FD are parallel. The straight lines FB and EC are parallel. ZABF = 47° and ZECD = 86°. 86 F Figure 4 (i) Find Za, explaining your reasoning. (ii) Find 48, explaining your reasoning. (iii) Find Zy, explaining your reasoning. (iv) What do your answers to parts (c)(ii) and (c)(iii) tell you about triangle FBD? Explain vour reasoning.

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