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# What does the "distance between two points" mean?

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In math, the term "distance between two points" refers to the length of a straight line drawn between the two points on an x-y axis. The distance can be determined by finding the change in the y axis and the the x axis and fitting them into the Pythagorean theorem.

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The formula for finding the distance between two points in Euclidean geometry, a? + b? = c?, is the same formula that is used to find the length of the hypotenuse of a right triangle. In a three-dimensional plane, the distance between two points must take in the change in the x, y and z coordinates.

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## Related Questions

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An intersection in mathematics usually refers to the point where two lines cross each other on a plot, but can also refer to shared numbers in data sets. It is possible for more than two lines to meet at an intersection, and it is also possible for a line to have more than one distinct intersection.

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A chord is a straight line that connects two points on the curve of a circle. Unlike a secant, which is a line that extends infinitely in both directions, a chord is confined to inside the circle.

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The perimeter is defined as the distance around the outside edge of a two-dimensional shape. The perimeter of a circle or an ellipse is referred to as the circumference.