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PSAT/NMSQT
PSAT Math Test - Calculator Section

Finding the Length of Side AB in Triangle ABC

Hard Additional Topics In Math Trigonometry

In triangle ABC, angle A measures 30 degrees and angle B measures 60 degrees. The length of side AC is 10 units. Using the Law of Sines, calculate the length of side AB. Please provide your answer as a decimal, rounded to two decimal places.

Recall the following Law of Sines formula:

$$ \f\frac{a}{\sin A} = \f\frac{b}{\sin B} $$

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