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what does empirical mean in geometry
geometry means lines, segments, and points!!
In geometry, a perpendicular segment that connects a vertex to its opposite side is the altitude of a triangle. Triangles have three altitudes, according to this definition for altitude.
In geometry, magnitude is the length of the hypotenuse of a right triangle.
Altitude in geometry means perpendicular height.
Perpendicular lines intersect at right angles.
In Euclidean plane geometry, two lines which are perpendicular not only can but must intersect. (I believe the same is true for elliptic geometry and hyperbolic geometry.)
In Euclidean plane geometry, two lines which are perpendicular not only can but must intersect. (I believe the same is true for elliptic geometry and hyperbolic geometry.)
They are parts of geometry
yes
Stigmatism doesn't meant anything in geometry and is not even a word. Astigmatism, however, is where rays in an optical system propagate in two perpendicular planes that have different focus.
perpendicular lines
Lines that intersect at right angles
Given two lines, each is perpendicular to the other if the angles formed at the vertex are 90 degrees.
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I believe they have Negative Slopes as stated by my Geometry Book. "Perpendicular Lines Have Slopes Which Are Negative ___"