Sprendimas: HHFxx6 - 1

S =

R^²

/ 2

* (

π

* α

/ 180

-sin(α))

S =

R^²

/ 2

* (

π

* α

/ 180

-sin(α)) $S$ = $\frac{R^{2}}{2}\cdot (\frac{\pi\cdot \alpha}{180}-sin(\alpha))$

S =

α* π

* R^²

/ 360

-

sin(α)* R^²

/ 2

$S$ = $\frac{\alpha\cdot \pi\cdot R^{2}}{360}-\frac{sin(\alpha)\cdot R^{2}}{2}$

S = 0.00278* R^²* α* π

- 0.5* R^²* sin(α) $S$ = $0.00278\cdot R^{2}\cdot \alpha\cdot \pi-0.5\cdot R^{2}\cdot sin(\alpha)$