Altern base
Encyclopedia
In trigonometry
, the altern base is distinguished from the true base. Thus, in oblique
triangle
s, the true base is the sum of the sides, and then the difference of the sides is the altern base; or the true base is the difference of the sides, and then the sum of the side is the altern base.
Trigonometry
Trigonometry is a branch of mathematics that studies triangles and the relationships between their sides and the angles between these sides. Trigonometry defines the trigonometric functions, which describe those relationships and have applicability to cyclical phenomena, such as waves...
, the altern base is distinguished from the true base. Thus, in oblique
Oblique
Oblique may refer to:*Oblique angle, in geometry, an angle that is not a multiple of 90 degrees*Oblique angle, synonym for Dutch angle, a cinematographic technique*Oblique , by jazz vibraphonist Bobby Hutcherson...
triangle
Triangle
A triangle is one of the basic shapes of geometry: a polygon with three corners or vertices and three sides or edges which are line segments. A triangle with vertices A, B, and C is denoted ....
s, the true base is the sum of the sides, and then the difference of the sides is the altern base; or the true base is the difference of the sides, and then the sum of the side is the altern base.