Question

ayudasss dos coronitaaaaa pliss​

Answer 1

$Areaderectangulo=lado \times ancho$

$200 {m}^{2} = x m\times 2x m\\ 200 {m}^{2} = 2 {x}^{2} {m}^{2} \\ x ^{2} = 100 \\ x = 10$