Question 1

Does the formula work for negative coordinates?

Accepted Answer

Yes. Differences squared remove sign, so negative coordinates are handled naturally.

Question 2

Is distance always positive?

Accepted Answer

The square root of a sum of squares is non-negative, so distance is always zero or positive.

Question 3

Why is this related to the Pythagorean theorem?

Accepted Answer

The coordinate legs represent perpendicular components, and the distance is the hypotenuse from the right triangle formed by those components.

Distance Calculator

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