Question

conociendo el area (A) de un circulo determina la medida de su radio​

Answer 1

Respuesta:

Explicación paso a paso:

a )

$Area: A = 28.26m^{2}$

$\pi = 3.14$

$Radio: r = ?$

$r = \sqrt{\frac{A}{\pi } } = \sqrt{\frac{28.26m^{2} }{3.14} }$

$r = \sqrt{9m^{2} }$

$r = 3m$

b)

$Area: A = 78.5 m^{2}$

$\pi = 3.14$

$Radio: r = ?$

$r = \sqrt{\frac{A}{\pi } } =\sqrt{\frac{78.5 m^{2} }{3.14} }$

$r = \sqrt{25m^{2} }$

$r = 5 m$

c)

$Area: A = 254.34cm^{2}$

$\pi = 3.14$

$Radio: r = ?$

$r = \sqrt{\frac{A}{\pi } } = \sqrt{\frac{254.34cm^{2} }{3.14} }$

$r = \sqrt{81 cm^{2} }$

$r = 9 cm$