Evaluate
15\sqrt{3}\approx 25.980762114
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30\sin(\frac{180}{3})
Divide 60 by 2 to get 30.
30\sin(60)
Divide 180 by 3 to get 60.
30\times \frac{\sqrt{3}}{2}
Get the value of \sin(60) from trigonometric values table.
15\sqrt{3}
Cancel out 2, the greatest common factor in 30 and 2.
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