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### Math PSSA Vocabulary

any of the counting numbers 0 through 9 digit
the name of a number written in digits standard form
a combination of numbers and symbols that show a mathematical relationship. It can contain variables expression
a math sentence showing that one expression equals another equation
having the same value equivalent
a math sentence that shows that the terms on either side are unequal inequality
a set of related addition and subtraction, or multiplication and division equations using the same numbers fact family
the distance around a figure (add all sides) perimeter
a polygon with 4 sides quadrilateral
a straight path extending in both directions with no endpoints line
lines that never intersect or touch and are always the same distance apart parallel lines
two lines, line segments, or rays that intersect to form right angles perpendicular lines
a part of a line that has one endpoint and continues without end in the other direction ray
a quadrilateral whose opposite sides are parallel and congruent parallelogram
having the same size and shape congruent
a parallelogram with four equal sides rhombus
a quadrilateral with exactly one pair of parallel sides trapezoid
a line that divides a figure into two halves that are mirror images of each other line of symmetry
a polygon with six sides hexagon
an angle with a measure less than 90 degrees acute angle
an angle that measures exactly 90 degrees right angle
an angle with a measure greater than 90 degrees obtuse angle
a point where lines, rays, or sides of a polygon meet vertex
a triangle with 1 right angle right triangle
a situation in which a rule causes each "in value" to have its own "out value" function
a table that uses tally marks to record data tally chart
a graph that uses pictures to show and compare information pictograph
a transformation that makes a mirror image of a shape - also called a flip reflection
a movement of a shape that turns the shape around a fixed point - also called a turn rotation
a movement of a shape to a new position without turning or flipping it translation
the product of a given number and another number multiple
a rectangular arrangement of objects in rows and columns array
the measure of the inside of a shape in square units area
time shown on a clock with an hour and minute hand analog time
a plane figure that serves as one side of a solid figure face
the line segment where two faces of a solid figure meet edge
a rectangular solid having six congruent square faces cube
the amount of space a solid figure can hold in cubic units volume
a solid figure with two circular bases that are parallel and congruent cylinder
a solid figure that has a circular base and one vertex cone
a solid figure with a polygon base and triangular sides that meet at a single point pyramid
a solid figure in which all six faces are rectangles rectangular prism
a solid figure that has all points the same distance from the center sphere
a group of items - placing these items in a different order does not create a new combination combination
average - the number found by dividing the sum of a set of numbers by the number of addends mean
the middle number in an ordered set of numbers or the average of the 2 middle numbers when the set has 2 middle numbers median
the number(s) that occur most often in a set of numbers mode
a pair of numbers used to locate a point on a coordinate grid. The first number tells how far to move over, and the second tells you how far to move up ordered pair
Created by: wkmurray

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