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  2. Perpendicular bisector construction of a quadrilateral

    en.wikipedia.org/wiki/Perpendicular_bisector...

    First iteration of the perpendicular bisector construction An equivalent construction can be obtained by letting the vertices of Q ( i + 1 ) {\displaystyle Q^{(i+1)}} be the circumcenters of the 4 triangles formed by selecting combinations of 3 vertices of Q ( i ) {\displaystyle Q^{(i)}} .

  3. Perpendicular bisector construction - Wikipedia

    en.wikipedia.org/wiki/Perpendicular_bisector...

    Perpendicular bisector construction of a quadrilateral, on the use of perpendicular bisectors of a quadrilateral's sides to form another quadrilateral Topics referred to by the same term This disambiguation page lists articles associated with the title Perpendicular bisector construction .

  4. Straightedge and compass construction - Wikipedia

    en.wikipedia.org/wiki/Straightedge_and_compass...

    Constructing the perpendicular bisector from a segment; Finding the midpoint of a segment. Drawing a perpendicular line from a point to a line. Bisecting an angle; Mirroring a point in a line; Constructing a line through a point tangent to a circle; Constructing a circle through 3 noncollinear points; Drawing a line through a given point ...

  5. Bisection - Wikipedia

    en.wikipedia.org/wiki/Bisection

    The interior perpendicular bisector of a side of a triangle is the segment, falling entirely on and inside the triangle, of the line that perpendicularly bisects that side. The three perpendicular bisectors of a triangle's three sides intersect at the circumcenter (the center of the circle through the three vertices). Thus any line through a ...

  6. Special cases of Apollonius' problem - Wikipedia

    en.wikipedia.org/wiki/Special_cases_of_Apollonius...

    To construct the perpendicular bisector of the line segment between two points requires two circles, each centered on an endpoint and passing through the other endpoint (operation 2). The intersection points of these two circles (operation 4) are equidistant from the endpoints. The line through them (operation 1) is the perpendicular bisector.

  7. Locus (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Locus_(mathematics)

    The set of points equidistant from two points is a perpendicular bisector to the line segment connecting the two points. [8] The set of points equidistant from two intersecting lines is the union of their two angle bisectors. All conic sections are loci: [9] Circle: the set of points at constant distance (the radius) from a fixed point (the ...

  8. Concurrent lines - Wikipedia

    en.wikipedia.org/wiki/Concurrent_lines

    The three perpendicular bisectors meet at the circumcenter. Other sets of lines associated with a triangle are concurrent as well. For example: Any median (which is necessarily a bisector of the triangle's area) is concurrent with two other area bisectors each of which is parallel to a side. [1]

  9. Huzita–Hatori axioms - Wikipedia

    en.wikipedia.org/wiki/Huzita–Hatori_axioms

    This is equivalent to finding the perpendicular bisector of the line segment p 1 p 2. This can be done in four steps: Use Axiom 1 to find the line through p 1 and p 2, given by () = + Find the midpoint of p mid of P(s) Find the vector v perp perpendicular to P(s) The parametric equation of the fold is then: