(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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Chapter7: Triangles
Section7.1: The Law Of Sines
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(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°
47
F
Figure 4
(i) Find Za, explaining your reasoning.
(ii) Find 2B, 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 your reasoning.
Transcribed Image Text:(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° 47 F Figure 4 (i) Find Za, explaining your reasoning. (ii) Find 2B, 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 your reasoning.
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