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Mamont248 [21]
3 years ago
6

Find the length of side x in simplest radical form with a rational denominator.

Mathematics
1 answer:
mojhsa [17]3 years ago
6 0

Answer:

x = \frac{8\sqrt{3} }{3}

Step-by-step explanation:

Using the sine ratio in the right triangle and the exact value

sin60° = \frac{\sqrt{3} }{2}

sin60° = \frac{opposite}{hypotenuse} = \frac{4}{x} = \frac{\sqrt{3} }{2} ( cross- multiply )

x × \sqrt{3} = 8 ( divide both sides by \sqrt{3} )

x = \frac{8}{\sqrt{3} } × \frac{\sqrt{3} }{\sqrt{3} } ( rationalising the denominator )

x = \frac{8\sqrt{3} }{3}

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