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SHMS 8th Math Vocab3

SHMS 8th Grade Math Vocab 3

TermDefinition
Altitude of a Triangle The perpendicular distance between a vertex of a triangle and the side opposite that vertex. Sometimes called the height of a triangle. Also, sometimes the line segment itself is referred to as this.
Base (of a Polygon) It can be any side for two-dimensional figures. Typically, however, it is the bottom side, on which the polygon "sits".
Cubed Root One of three identical factors of a number that is the product of those factors.
Diameter The distance across a circle through its center. The line segment that includes the center and whose endpoints lie on the circle.
Hypotenuse It is the side of a right triangle that is directly across from the right angle. This is also the longest side of any right triangle.
Leg of a Triangle Either of the two shorter sides of a right triangle. These two sides together form the right angle in the right triangle.
Perfect Cubes In arithmetic and algebra, the cube of a number n is its third power. It is the result of the number multiplying by itself three times.
Pythagorean Theorem A theorem that states that in a right triangle, the square of the length of the hypotenuse equals the sum of the squares of the lengths of the legs. a^2 + b^2 = c^2
Pythagorean Triples A set of positive integers, a, b, and c that fit the rule a^2 + b^2 = c^2.
Radius The distance from the center of a circle to any point on the circle. Also, the line segment that has the center of the circle as one endpoint and a point on the circle as the other endpoint.
Right Triangle A triangle with exactly one right angle.
Volume The amount of space occupied by an object.
Domain It is the set of all x-coordinates of the ordered pairs of a relation or the "input" of the relation.
Function A rule of two sets of numbers in which an input value from the first set has only one unique output value in the second set. In other words, a relation where each input has a unique output.
Range The set of all output values or the y-values of a relation.
Created by: hbogue