Using the cosine ratio, the length of BC to the nearest hundredth is: 4.91.
What is the Cosine Ratio?
Cosine ratio is: cos ∅ = adjacent side/hypotenuse
Given the right triangle in the diagram above, thus:
- ∅ = 35°
- Adjacent = ? = BC
- Hypotenuse = 6
Thus:
cos 35 = BC/6
BC = cos 35 × 6
BC = 4.91
Thus, using the cosine ratio, the length of BC to the nearest hundredth is: 4.91.
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