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### 27 Cards in this Set

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 Diameter a straight line passing through the center of a figure or body; especially : a line segment through the center of a circle with its ends on the circle's circumference Distributive property (numeric) an algebra property which is used to multiply a single term and two or more terms inside a set of parentheses Edges the line where two plane faces of a solid meet Equation (modeling) a statement of the equality of two mathematical expressions Expanded form A way to write numbers by showing the value of each digit Faces A flat surface of a solid figure Improper fraction A fraction which has a larger numerator than denominator Intersecting (lines) Lines that intersect in a point are called intersecting lines Inverse operation The quantity which cancels out a given quantity Mean Another word for average. Mean almost always refers to arithmetic mean. Metric units (meter, liter, gram) Meter – 3.28 feet Liter – 33.824 fluid ounces Gram - 0.035 ounces Millions Numerical unit between thousands and billions Mixed numbers Mixed numbers have a whole number part and a fraction part Parallel (lines) Lines that never cross and are always the same distance apart Perpendicular (lines) At a 90° angle Plane A flat surface extending in all directions; two-dimensional figure Polygon A closed plane figure for which all sides are line segments. The name of a polygon describes the number of sides Proper fraction A fraction with a smaller numerator than denominator Quadrilateral A polygon with four sides. Radius A line segment between the center and a point on the circle or sphere. Ray A part of a line starting at a particular point and extending infinitely in one direction Standard form A way to write numbers by using the digits 0-9, with each digit having a place value Thousandths the place value that represents one thousandth of a whole. It is also one tenth of a hundredth and one hundredth of a tenth Types of triangles (isosceles, equilateral, scalene, right, acute, obtuse) Isosceles – triangle with two sides that are the same length Equilateral – A triangle with three congruent sides. Scalene – A triangle for which all three sides have different lengths. Right – A triangle which has a right (90°) interior angle. Acute – A triangle for which all interior angles are acute. Obtuse – A triangle which has an obtuse angle as one of its interior angles. Variable A quantity that can change or that may take on different values Vertex or verticles A corner point of a geometric figure X, y axis x-axis - the horizontal axis of a two-dimensional plot y-axis - The vertical axis of a two-dimensional plot