A box has a total surface area of $100.$ The length of the box is equal to twice its width, as well as equal to $3$ less than it
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We know that in two dimensional co-ordinate geometry, the distance,d, between any two points and
is given by the formula:
We will use the above formula that Darko must have used to find the distance between the two points A(3,-4) and B(-1,3). In this case: and
.
Thus, the distance,
Therefore, the distance between the given points A(3,-4) and B(-1,3) is: or 8.06 (approx).