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The line segment where two faces of a polyhedron meet.

One of the conic sections.

Major (longer) axis: AB;

minor (shorter) axis: CD;

vertices: A, B, C, D;

center: O:

The set with nothing in it.

A point at the end of a line segment, a vector, a ray, ... .

A nine-side polygon.

General form: a*x* + b*y* + c = 0.

Intercept form: (*x*-intercept:
(p,0); *y*-intercept: (0,q)).

Slope-Intercept form: *y* = m*x* + q (slope:
*m*; *y*-intercept: (0,b)).

Point-Slope form: *y* - *y*_{1} =
m(*x* - *x*_{1}).

Two-Points form: (*x*_{2} -
*x*_{1})(*y* - *y*_{1}) =
(*y*_{2} - *y*_{1})(*x* -
*x*_{1})

A triangle with all sides (and angles) congruent.

An integer number that is divisible by 2 without remainder.

One or more outcomes of a probability experiment.

One or the other, but not both.

A number written in a form which shows the value of the digits:
237 = (2x10^{2}) + (3x10^{1}) +
(7X10^{0})

In the expression a^{b} (a to the power of b), b is the
exponent.

A function of the form *f(x) =* a^{x}.

Used in polygons.

In the proportion *a:b = c:d*, *a* and *d*.
See Means.

copyright 2000 et seq. maddalena falanga & luciano battaia

first published on september 01 2003 - last updated on september 01
2003