Question

3pi /5+4pi/15 + measure angle C=pi

Answer 1

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$= > \frac{3\pi}{5} + \frac{4\pi}{15} + \angle \: c = \pi \\ \\ = > \angle \: c = \pi - \frac{3\pi}{5} - \frac{4\pi}{15} = \frac{15\pi - 9\pi - 4\pi}{15} \\ \\ = > \bf \: \angle \: c = \underline\frac{2\pi}{15}$
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