Question

πr2 - π r2/22=3π cual es su resultado y so procedimiento porfa:(​

Answer 1

Explicación paso a paso:

$\pi {r}^{2} - \frac{\pi {r}^{2} }{22} = 3\pi$

$\frac{22\pi {r}^{2} - \pi {r}^{2} }{22} = 3\pi$

$21\pi {r}^{2} = 66\pi$

${r}^{2} = \frac{66}{21}$

$r = \sqrt{ \frac{66}{21} }$

$r = 1.77$