Question

Formula to find distance between a point and the origin​

Answer 1

Answer:

As a special case of the distance formula, suppose we want to know the distance of a point (x,y) to the origin. According to the distance formula, this is √(x−0)2+(y−0)2=√x2+y2. A point (x,y) is at a distance r from the origin if and only if √x2+y2=r, or, if we square both sides: x2+y2=r2.

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