Question 966411
In ΔABC, if m ∠A  = m∠C, m∠B = ß (where ß is an acute angle), and BC = x, which expression gives the length of b, the side opposite ∠B ?
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b/2 = x*sin(beta/2)
{{{b = 2x*sin(beta/2)}}}
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Other expressions are possible.