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Wittaler [7]
3 years ago
15

Which expression represent the approximate length of BC HEEEEELLLLPPP!!!

Mathematics
1 answer:
Bumek [7]3 years ago
5 0

Answer:

A

Step-by-step explanation:

Using the Sine rule in Δ ABC

\frac{sinA}{BC} = \frac{sin38}{AB} , substitute values

\frac{sin66}{BC} = \frac{sin38}{3} ( cross- multiply )

BC sin38° = 3 sin66° ( divide both sides by sin38° )

BC = \frac{3sin66}{sin38} → A

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