Question

Halla el radio segun de cada circulo ,seg
un su area
@.A=50,2656 cm²

Answer 1

$A=\pi r^{2}\\\\A=502656$

$502656=\pi r^{2}\\\\502656=(3.1416)r^{2}\\\\\frac{502656}{3.1416}=r^{2}\\\\160000=r^{2}\\\\r=\sqrt{160000}=400cm$