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Topic Content:
- Sine and Cosine of an Angle
In the above diagram, ΔABE, ΔACF and ΔADG and ΔAYH are all right-angled triangles and they all have angle θ in common. This means they are similar because they are equiangular.
Hence,
\( \frac{BE}{AB} = \frac{CF}{AC} = \frac{DG}{AD} \)
Using: SOH CAH TOA
where:
S = Sine, C = Cosine, T = Tan
O = Opposite, H = ...
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