¹ *Source: wiktionary.com*

### Definition of Perpendiculars

**1.** perpendicular [n] - See also: perpendicular

### Perpendiculars Pictures

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### Lexicographical Neighbors of Perpendiculars

### Literary usage of Perpendiculars

Below you will find example usage of this term as found in modern and/or classical literature:

**1.** *A Treatise on Conic Sections: Containing an Account of Some of the Most* by George Salmon (1879)

"For example, if PA, PS, PC, PD be the **perpendiculars** let fall from any point of
... The product of the **perpendiculars** from The product of the **perpendiculars** ..."**2.** *A Treatise on the Higher Plane Curves: Intended as a Sequel to A Treatise on* by George Salmon (1879)

"An important property of the **perpendiculars** let fall from the foci on any tangent
is at once derived from the equation expressed in that system of ..."**3.** *Encyclopædia Britannica: Or, A Dictionary of Arts, Sciences, and* by Colin MacFarquhar, George Gleig (1801)

"AH the **perpendiculars**, fuch as PR, on one lids of the plane CDFE, being equal to
... The fame mud be affirmed of all the **perpendiculars** PM, and of all the ..."**4.** *A Treatise on Surveying: Comprising the Theory and the Practice* by William Mitchell Gillespie (1897)

"**perpendiculars** may be set out with the chain alone, by a variety of methods. ...
Diagonals and **perpendiculars**. 96. We have seen in the preceding pages that ..."**5.** *Mathematical Questions and Solutions* by W. J. C. Miller (1888)

"In a rectangular tetrahedron, the **perpendiculars** from the angular points on the
opposite faces meet in a point, the centre of **perpendiculars**. ..."**6.** *A Treatise on the Analytic Geometry of Three Dimensions* by George Salmon (1882)

"The equation of the sphere circumscribing a tetrahedron may be most simply obtained
as follows : Let the four **perpendiculars** on each face from the opposite ..."**7.** *A Treatise on Land-surveying: Comprising the Theory Developed from Five* by William Mitchell Gillespie (1869)

"(171) By **perpendiculars**. The straight line, AB in the figure, is supposed to be
stop- c DEF ped by a tree, a house, or other obstacle, and it is desired to ..."**8.** *Chapters on the Modern Geometry of the Point, Line, and Circle: Being the* by Richard Townsend (1863)

"But the converse property which establishes the relation as a criterion of
concurrence of the several **perpendiculars** is true only for the triangle. ..."