# 7th Grade Word List: Math

Words for students of 7th Grade, the page is for math words (List 1), which are essential vocabulary for 7th Grade academic classes.
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 7th Grade: 7th Grade Word List: Math (List 1)
 absolute value a real number regardless of its sign
 acute triangle a triangle whose interior angles are all acute
 bisector the line that divides something into two equal parts
 corresponding angles when two lines are crossed by another line, the angles in matching corners
 discount give reduction in price on; an amount or percentage deducted
 equilateral triangle a three-sided regular polygon
 experimental probability the ratio of the number of outcomes in which a specified event occurs to the total number of trials, not in a theoretical sample space but in an actual experiment.
 exponential notation scientific notation, a way of writing numbers that are too big or too small to be conveniently written in decimal form
 exterior angles the angle between a side of a rectilinear figure and an adjacent side extended outward
 interest the power of attracting or a fixed charge for borrowing money; usually a percentage of the amount borrowed
 interior angles the angle between adjacent sides of a rectilinear figure
 isosceles triangle a triangle with two equal sides
 negative less than zero; having a negative charge; reckoned in a direction opposite to that regarded as positive
 obtuse triangle a triangle that contains an obtuse interior angle
 outcome result; end or consequence; result of a random trial
 permutations rearrangement of the elements of a set
 positive involving advantage or good ; greater than zero; very sure; confident
 radical sign a sign indicating the extraction of a root
 ratio relation which one quantity or magnitude has to another of the same kind; rate; proportion
 regular polygon a polygon with all sides and all angles equal
 rhombus a parallelogram with four equal sides; an oblique-angled equilateral parallelogram
 right triangle a triangle with one right angle
 scale factor a number used as a multiplier in scaling
 scalene triangle a triangle with no two sides of equal length
 theoretical probability the probability that a certain outcome will occur, as determined through reasoning or calculation.
 transversal extending or lying across; in a crosswise direction; at right angles to the long axis
 unit rate the estimated market value contribution for each unit of an improvement
 vertical angle either of two equal and opposite angles formed by the intersection of two straight lines
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