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15 September, 05:18

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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  1. 15 September, 06:19
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    To find the expression

    we have sin ß=b/x, so we can find b=x sin ß, b is opposite side to

    ∠B, it is also the height of the equilateral triangle
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