Supplementary Angles		A equation that states a rule or a fact.
Translation		A parallelogram with four equal sides.
Complementary Angles		A triangle with three unequal sides.
Triangle		For a three-dimensional figure, the sum of the areas of all the faces.
Ray		A squared B squared = C squared
Scalene Triangle		The ratio of the circumference of a circle to its diameter.
X-axis		The total number of successful events divided by the total number of possible events.
Obtuse Triangle		A triangle with an obtuse angle.
Formula		Part of a line, with one endpoint, and extending to infinity in one direction.
Y-axis		The steepness of a line expressed as a ratio, using any two points on the line.
Hypotenuse		The vertical axis in a coordinate system.
Pi		A triangle each of whose angles measures less than 90 degrees.
Pythagorean Theorem		A triangle that has three equal sides.
Equilateral Triangle		Two angles are supplementary if their sum is 180 degrees.
Isosceles Triangle		A triangle with at least two equal sides.
Surface Area		A letter used to represent a number value in an expression or an equation.
Line		A point on a line segment that divides the segment into two congruent segments.
Midpoint		A polygon with 4 sides.
Right Triangle		A flat surface that stretches into infinity.
Variable		A triangle that contains a right angle.
Rhombus		The side opposite the right angle in a right triangle.
Plane		The horizontal axis in a coordinate plane.
Quadrilateral		A straight set of points that extends into infinity in both directions.
Acute Triangle		A transformation, or change in position, resulting from a slide with no turn.
Slope		Two angles whose sum is 90 degrees.
Probability		A three-sided polygon.