Examlex
In the length of one generation,which of the following countries has gone from being among the poorest countries in the world to being among the richest?
Vertices
The points where two or more edges meet in a geometric shape or graph.
Center
The midpoint or origin in a coordinate system; also refers to the midpoint of a shape or object in geometry.
Method of Substitution
A technique used to solve systems of equations by solving one equation for one variable and then substituting that expression into the other equation(s).
System of Equations
A set of equations with the same variables, where the solution is the set of values that satisfies all equations simultaneously.
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