Question : Study the given triangle and find the length of BC.
Option 1: $\frac{5}{2}$
Option 2: 6
Option 3: 5
Option 4: 3
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Correct Answer: 5
Solution :
Given $\angle A = 30°$
We have to find the value of BC i.e., $x$.
$\sin 30° = \frac{x}{10}$
⇒ $\frac{1}{2}=\frac{x}{10}$
⇒ $x=5$ units
Hence, the correct answer is 5.
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