Statistics for Math Vocabulary

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Defintion	Word	% Correct
Five-sided polygon	Pentagon	93%
Number that has no factors besides itself and one	{Prime} number	91%
Three-dimensional version of a circle	Sphere	89%
Angle of less than 90 degrees	{Acute} angle	86%
Opposite of concave	Convex	85%
The bottom number in a fraction	Denominator	80%
The longest side of a right triangle	Hypotenuse	75%
Quantity that represents both a speed and a direction	Velocity	73%
Ratio of a circle's circumference to its diameter	Pi	69%
Type of average; the most common value in a set	Mode	66%
What this symbol represents: ∑	Summation	65%
Square roots of negative numbers	{Imaginary} numbers	55%
Concept represented by the ! symbol	Factorial	53%
Triangle in which all sides have different lengths	Scalene	49%
Number that cannot be expressed as a fraction of two integers	{Irrational} number	44%
10 to the 100th power	Googol	43%
Point where lines meet in a polygon	Vertex	41%
Two-dimensional version of a line	Plane	30%
The set of positive integers	{Natural} numbers	27%
Tetrahedrons and Dodecahedrons are types of this	Polyhedron	16%