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Vocab

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
slope   rise over run  
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slope intercept form   a linear equation in the form y=mx+b, m=slope and b= y-intercept  
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y-intercept   the y coordinate of a point where a graph crosses the y-axis  
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inequality   mathematical sentence that contains <,>,(not equal to),(less than or equal to), (greater than or equal to)  
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null set   a set with no elements, shown by a circle with a line through it  
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acute angle   an angle with a measure greater than 0 and less than 90 degrees  
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congruent   line segments that have the same length, or angles that have the same measure, or figures that have the same size and shape  
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hypotenuse   the side opposite the right angle in a right triangle  
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irrational numbers   numbers that cannot be expressed as a over b where a and b are integers and b does not equal 0  
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isoceles triangle   a triangle with at least 2 congruent sides  
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line segment   part of a line containing 2 end points and all the points between them  
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obtuse triangle   a triangle with 1 obtuse angle  
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perfect square   rational numbers whose square roots are whole numbers  
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right angle   and angle that measures 90 degrees  
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scalene triangle   a triangle with no congruent sides  
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similar figures   figures that have the same shape but not the same size  
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straight angle   an angle with a measure equal to 180 degrees  
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vertex   vertex of a polygon is a point where 2 sides of the polygon intersect  
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adjacent angles   2 angles that have the same vertex, share a common side, and do not overlap  
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altitude   a line segment that is perpendicular to the base of a figure with endpoints on the base and the side opposite the base  
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circle   the set of all points in a plane that are the same distance from a given point called the center  
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circumference   the distance around a circle  
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complementary   2 angles where the sum of their measures is 90 degrees  
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diameter   the distance across a circle through its center  
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parallel lines   2 lines in the same plane that do not intersect  
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parallelogram   a quadrilateral with sides parallel and congruent  
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perpendicular lines   lines that intersect to form a right angle  
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quadrilateral   a closed figure with four sides and four vertices  
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radius   the distance from the center to any point on the circle  
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regular polygon   a polygon having all sides and angles congruent  
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rhombus   a parallelogram with 4 congruent sides  
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supplementary   2 angles where the sum of their measures is 180 degrees  
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transformation   a movement of a geometric figure  
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trapezoid   a quadrilateral with one pair of parallel sides  
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vertical angles   2 pairs of opposite angles formed by 2 intersecting lines  
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cone   a 3-dimensional figure with one circular base  
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cylinder   a solid that has 2 parallel, congruent bases connected with a curved side  
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edge   where 2 planes intersect in a line  
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face   a flat surface, the side or base of a prism  
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lateral area   the sum of the areas of the lateral faces of a solid  
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polyhedron   a solid with flat surfaces that are polygons  
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prism   a polyhedron that has 2 parallel, congruent bases in the shape of polygons  
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pyramid   a polyhedron that has a polygon for a base and triangles for sides  
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slant height   the length of the altitude of a lateral face of a regular pyramid or cone  
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sphere   the set of all points in a space that are given a distance, r, from the center  
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surface area   the sum of the areas of all the surfaces(faces) of a 3-dimensional figure  
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volume   the measure of a space occupied by a solid region  
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combination   an arrangement or listing where order is not important  
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dependent events   2 or more events in which the outcome of one event affects the outcome of the other events  
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independent events   2 or more events in which the outcome of one event does not affect the outcome of the other events  
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interquartile range   UQ-LQ  
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mutually exclusive events   2 or more events that cannot happen at the same time  
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permutation   an arrangement or listing in which order is important  
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probability   the ratio of the number of ways a certain event can occur to the number of possible outcomes  
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quartiles   the values that divide a set of data into 4 equal parts  
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sample space   the set of all possible outcomes  
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