Endpoint Calculator

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Choose whether you are working in a flat (2D) or three-dimensional (3D) space.
The x-coordinate of the known endpoint P₁.
The y-coordinate of the known endpoint P₁.
The x-coordinate of the midpoint M.
The y-coordinate of the midpoint M.
Missing endpoint x₂
5

x-coordinate of the missing endpoint P₂

Missing endpoint y₂7
Segment length5.6569units
Midpoint of P₁ to P₂(3, 5)
x₂ (missing endpoint)5
y₂ (missing endpoint)7
Segment length (units)5.6569

Missing endpoint found: P₂ = (5, 7)

  • The missing endpoint P₂ is at (5, 7).
  • The full segment from P₁ to P₂ is 5.6569 units long.
  • The slope of the segment from P₁ to P₂ is 1.
  • The midpoint of the resulting segment is (3, 5), confirming the answer.

Next stepUse the distance result with the slope or angle to extend the segment or project onto another line. Pair with a midpoint calculator to verify the result in reverse.

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