Answer
$\approx292.06$
Work Step by Step
The distance formula from $P_1(x_1,y_1)$ to $P_2(x_2,y_2)$ is $d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$.
Hence here: $\sqrt{(200-(-30))^2+(40-(-140))^2}=\sqrt{52900+32400}\approx292.06$
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