The distance between city a and city b is square root {(x_2 - x_1)^2 + (y_2 - y_1)^2} where (x_1, y_1) is city a coordinates and (x_2, y_2) is city b coordinates.
Given,
Two cities a and b are mapoed on the coordinate plane.
We need to find the distance between them.
One point has (a,b) coordinates.
The other point has (c,d) coordinates.
The distance between them is given by:
square root {(c-a)^2 + (d-b)^2}
Let,
City a has (x_1, y_1) coordinates.
City b has (x_2, y_2) coordinates.
Find the distance between city a and city b.
Distance = square root {(x_2 - x_1)^2 + (y_2 - y_1)^2}
Thus the distance between city a and city b is square root {(x_2 - x_1)^2 + (y_2 - y_1)^2} where (x_1, y_1) is city a coordinates and (x_2, y_2) is city b coordinates.
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