Area of a Sector
Calculate the area of a sector, the length of its arc, and the length of its chord based on its radius and central angle.
| Area S | |
| Arc Length L | |
| Chord Length c |
| \(\normalsize Circle\ sector\\ (1)\ area:\hspace{65px} S= {\large\frac{r^2\theta}{2}}\\ (2)\ circular\ arc :\ L=r\theta\\ (3)\ chord :\hspace{60px}c=2r\sin{\large\frac{\theta}{2}}\\\) |
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