Zapewne chodzi o : "oblicz promień koła o polu"
Pole wyraża się wzorem
Aby wyliczyć promień przekształcimy wzór funkcji:
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Zapewne chodzi o : "oblicz promień koła o polu"
Pole wyraża się wzorem
Aby wyliczyć promień przekształcimy wzór funkcji:
1.![r=\sqrt{\frac{16 \pi}{\pi}}= \sqrt{16}= 4 \ \ \ [cm] r=\sqrt{\frac{16 \pi}{\pi}}= \sqrt{16}= 4 \ \ \ [cm]](https://tex.z-dn.net/?f=r%3D%5Csqrt%7B%5Cfrac%7B16+%5Cpi%7D%7B%5Cpi%7D%7D%3D+%5Csqrt%7B16%7D%3D+4+%5C+%5C+%5C+%5Bcm%5D)
2.![r=\sqrt{\frac{\frac{4}{9} \pi}{\pi}}=\sqrt{\frac{4}{9}}=\frac{2}{3}[m] r=\sqrt{\frac{\frac{4}{9} \pi}{\pi}}=\sqrt{\frac{4}{9}}=\frac{2}{3}[m]](https://tex.z-dn.net/?f=r%3D%5Csqrt%7B%5Cfrac%7B%5Cfrac%7B4%7D%7B9%7D+%5Cpi%7D%7B%5Cpi%7D%7D%3D%5Csqrt%7B%5Cfrac%7B4%7D%7B9%7D%7D%3D%5Cfrac%7B2%7D%7B3%7D%5Bm%5D)
3.![r=\sqrt{\frac{0,25\pi}{\pi}} =\sqrt{0,25}=0,5[mm] r=\sqrt{\frac{0,25\pi}{\pi}} =\sqrt{0,25}=0,5[mm]](https://tex.z-dn.net/?f=+r%3D%5Csqrt%7B%5Cfrac%7B0%2C25%5Cpi%7D%7B%5Cpi%7D%7D+%3D%5Csqrt%7B0%2C25%7D%3D0%2C5%5Bmm%5D)
4.![r=\sqrt{\frac{2 \pi}{\pi}}= \sqrt{2}[dm] r=\sqrt{\frac{2 \pi}{\pi}}= \sqrt{2}[dm]](https://tex.z-dn.net/?f=r%3D%5Csqrt%7B%5Cfrac%7B2+%5Cpi%7D%7B%5Cpi%7D%7D%3D+%5Csqrt%7B2%7D%5Bdm%5D)
5.![r=\sqrt{\frac{3}{\pi}}[km] r=\sqrt{\frac{3}{\pi}}[km]](https://tex.z-dn.net/?f=r%3D%5Csqrt%7B%5Cfrac%7B3%7D%7B%5Cpi%7D%7D%5Bkm%5D)