# Math Vocabulary - G

Word Definition Examples
Gamma Γ γ Greek letter sometimes used in math problems.

Small gamma, because it is the third letter of the Greek alphabet, is used in Geometry to lable the angles in triangles.

Capital gamma is used when doing factorials with complex numbers and in probability. Geometric Mean The geometric mean is a special type of average and a measure of central tendency.

The geometric mean of two numbers, a and b, is the square root of the product - a times b

For the geometric mean of three numbers, take the cube root of their product.

Geometric Sequence A series of numbers where each consecutive number is the prior number times a constant called the common ration.

Ľ, ˝, 1, 2, 4, 8, ...
has a common ratio of 2 - each number is 2 times the one before

Geometry The study of lines, shapes, measurements, angles, and figures in space based on defined properties.
Plane geometry studies shapes on flat surfaces, like your paper or the chalkboard. Spherical geometry studies shapes on a sphere, like a ball or the earth.
Graph of an equation The set of all ordered pairs (points) that solve the equation.
Greatest common factor GCF The largest number that is a factor of two or more whole numbers. 7 is the GCF of 14 and 21

Comments, questions, or you just need some help? Send an e-mail to Mrs. Shearer Last Updated: 6/26/2014  