7th Grade Word List: Math

a real number regardless of its sign

a triangle whose interior angles are all acute

the line that divides something into two equal parts

when two lines are crossed by another line, the angles in matching corners

give reduction in price on; an amount or percentage deducted

a three-sided regular polygon

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.

scientific notation, a way of writing numbers that are too big or too small to be conveniently written in decimal form

the angle between a side of a rectilinear figure and an adjacent side extended outward

the power of attracting or a fixed charge for borrowing money; usually a percentage of the amount borrowed

the angle between adjacent sides of a rectilinear figure

a triangle with two equal sides

less than zero; having a negative charge; reckoned in a direction opposite to that regarded as positive

a triangle that contains an obtuse interior angle

result; end or consequence; result of a random trial

rearrangement of the elements of a set

involving advantage or good ; greater than zero; very sure; confident

a sign indicating the extraction of a root

relation which one quantity or magnitude has to another of the same kind; rate; proportion

a polygon with all sides and all angles equal

a parallelogram with four equal sides; an oblique-angled equilateral parallelogram

a triangle with one right angle

a number used as a multiplier in scaling

a triangle with no two sides of equal length

the probability that a certain outcome will occur, as determined through reasoning or calculation.

extending or lying across; in a crosswise direction; at right angles to the long axis

the estimated market value contribution for each unit of an improvement

either of two equal and opposite angles formed by the intersection of two straight lines