Circular sector

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Circular sector

Arc length

l = r α_{[r a d]} = \frac{r α_{[°]} π}{180 °}

Sector Area

A = \frac{r^{2} α_{[r a d]}}{2} = \frac{r^{2} α_{[°]} π}{360 °}

Keywords: selctor,arc length, sector area

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Circular sector