Evaluate
-140
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-140
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\frac{\left(-\frac{7\pi }{9}\right)\times 180}{\pi }
Divide -\frac{7\pi }{9} by \frac{\pi }{180} by multiplying -\frac{7\pi }{9} by the reciprocal of \frac{\pi }{180}.
\frac{-20\times 7\pi }{\pi }
Cancel out 9, the greatest common factor in 180 and 9.
-20\times 7
Cancel out \pi and \pi .
-140
Multiply -20 and 7 to get -140.
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