The ABC's of Algebra & GeometryBy Samantha Pitta - May 2014

A is for Angle

• An Angle is the figure formed by two rays, called sides, that share the same endpoint.

B is for Biased Sample

• A Biased Sample is a sample that is NOT representational of the population.

C is for Circumference

• Circumference is the distance around a circle.

D is for Dividend

• The dividend is the number to be divided.

E is for Equilateral Triangle

• An equilateral triangle is a triangle in which all 3 sides have the same length.

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F is for Fraction

• A fraction is number that shows a part of a set, a point on a number line, a part of a whole, a quotient, or a ratio.

H is for Hypotenuse

• Hypotenuse is the side opposite of the right angle in a right triangle.

I is for Isoceles Triangle

• An Isoceles Triangle is a triangle that has at least 2 equal sides in length.

J is for Justify

• To Justify simply means to show how you can change the way a problem is set up.

K is for Kite

• A Kite is a quadrilateral with two pairs of adjacent sides that are congroent, the diagonals of the kite are perpendicular.

L is for Least Common Multiple

• The Least Common Multiple is the least non-zero number that is a multiple of two or more non-zero given numbers.

M is for Mode

• Mode is the data values that occur most often in a set of data; data may have 0,1,or many modes,

N is for Number Line

• A Number Line is a line on which each point represents a number.

O is for Order of Operations

• The Order of Operations is the order in which operations must be computed when more than one operation is involved.

Way to remember:"Please Excuse My Dear Aunt Sally"PEMDASParenthesesExponentsMultiplyDivide AdditionSubtraction

P is for Pi

Pi is the ratio of a circle to its diameter. Pi is written π and is a trancendental number.

Q is for Quadrants

• Quadrants are one of the four regions into which the coordinate axes seperate the coordinate plane.

R is for Rational Number

• A Rational Number is any number that can be expressed as a ratio where a and b are intergers and b is non-zero.

S is for Surface Area

• Surface Area is the sum of the areas of all surfaces of a three-dimensional figure.

T is for Transformation (Geometric)

• Transformation is a movement or change of a figure, such as a translation, reflection, rotation, or dialation.

U is for Unit Rate

• The Unit Rate is a rate that is a denominator of one unit.

V is for Vertex

• Vertex is the common endpoint of the two rays or segments that form an angle less than 80 degrees.

W is for Whole Numbers

• Whole Numbers are 0 and the counting numbers.

X is for X-Axis

• The X-Axis is the horizontal axis on a coordinate plane.

Y is for Y-Axis

• The Y-Axis is the vertical axis on a coordinate plane.

Z is for Zero Product Property

• Zero Product Property is for all numbers a and b, if ab=0 then either a=0 or b=0 or both a and b equal 0.

Sources

• Glossary from Fundamentals of Geometry and Algebra

• http://www.quia.com/jg/411115list.html For definitions not found in the glossary