Geometric constructions: perpendicular line through a point off the line | Geometry | Khan Academy

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We can construct a perpendicular line through a point off the line. The lines must be perpendicular because a rhombus's diagonals are perpendicular.

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Nice - you drew a vesica pisces - more geometry drawings, please!

JimKernix
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es que de verdad si uno puede ver la hoja mas bien en vez de la mano del man tapando todo sería chevere.

juancamiloguarin
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I'd have used a square, myself.
Unless I also wanted a vesica pisces and two co-joined equilateral triangles in an attempt to portray a photon in two dimensions..
You do have a square to go with your compass, right?

SecondComingTwice
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Dear Sal. You know way more then the average In Debt student.

TheFlounderPounder
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But how do we know you don't need this theorem to prove that the diagonals of a rhombus are perpendicular...?

JustinKenderes