Digital Dictionary

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Digital Dictionary

• By John and Hunter

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Directions

• This will be a little help to you on the PSSA
  test and we hope this will make you have a better
  vocabulary in math. I hope you enjoy our project
  so get ready for our amazing power point.

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Acute Angle

• An angle measuring between 0 and 89 degrees.

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Area

• The amount of units in a figure.

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Chord

• A line segment with its end points on the circle.

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Circumference

• The perimeter of a circle, the distance around
  it. Found by diameter times PI.

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Cone

• A three dimensional figure with one vertex and
  one round face.

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Composite Number

• A number with more than two factors.
• Antonym Prime Number
• 14 falls into this category.

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Congruent Figures

• Two or more figures that have the same size and
  shape.

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Cube

• A six square sided
• 3-D figure.
• Antonym Square

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Cylinder

• A 3-D figure with two circular faces.

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Diameter

• A line that goes through the whole circle
  including the center.

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Edge

• A line forming the intersecting of two faces of a
  polyhedron.

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Equilateral

• All the same.
• A square has equilateral sides.

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Face

• Flat surface of a polyhedron.

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Flip

• The same as to reflect.

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Factors

• A number that can go into another number.
• Example the factors of 12 are 1 2 3 4 6 and 12

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Hexagon

• A six sided closed figure.

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Intersecting

• Crossing each other.

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Inverse Operation

• The opposite operation of the other.
• Adding and subtracting are this.

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Line

• An endless straight figure.

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Isosceles and Scalene Triangles

• An Isosceles triangle is a triangle that has two
  equal sides and another side. A Scalene triangle
  is a triangle with no equal sides.

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Leg

• Either of the two sides that form the right
  angle in a right triangle.

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Line of symmetry

• A line of symmetry is a line that can go through
  a shape and both sides are equal.

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Mean

• Mean is the same as the average of a set of
  data.
• 5,7,8,2 4.4

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Median

• The number in the middle of a set of data.
• 4,5,6,8,7

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Mode

• The number that occurs most often in a set of
  data.
• 6,6,5,4,3,7,6

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Multiples

• A number that is the product of 2 numbers being
  multiplied. 4 x 5 20.

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Negative Numbers

• Numbers that are below zero.
• - 4

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Net

• A 2-D figure that can be folded into a polyhedron.

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Obtuse Angle

• An angle that is over 90 degrees.

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Octagon

• An eight sided figure.

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Pattern

• Its a cycle that is repeated.

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Parallel Lines

• Two lines that are on the same plane but do not
  intersect.
• Antonym intersecting lines.

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Parallelogram

• A figure with two sets of parallel sides.

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Pentagon

• A closed five sided figure.

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Perimeter

• The measurement of the out side edge of a figure.

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Perpendicular Lines

• Lines that intersect to form a right angle.

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Polygon

• A closed figure with straight sides.

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Prime Number

• A number that doesnt have any factors except 1
  and itself.
• 3,5,7

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Pyramid

• A 3-D figure with five flat faces.

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Quadrilateral

• A four sided flat closed figure.

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Radius

• The line from the center of the circle to the
  boundary.

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Ray

• A straight line extending from a point.

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Range

• When the smallest and largest numbers are
  subtracted in a set of data.
• 9,4,6,7,2
• 9-27

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Rectangular Prism

• A 3-D figure that has six sides.

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Rectangle

• A shape that has four sides and four right angles
  with two parallel sides.

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Rhombus

• A four sided figure with all the sides the same
  length.

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Right Angle

• An angle that is 90 degrees exactly.

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Right Triangle

• A triangle with a right angle.

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Slide

• The act of moving.

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Sphere

• A 3-D figure of a circle.

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Square

• A four sided shape with two sets of parallel
  sides and all sides are equal.

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Similar Figures

• Two figures that have the same shape but
  different sizes.

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Symmetrical

• The same thing.

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Straight Angle

• A straight line.

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Transformation

• Shifting into something else.

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Trapezoid

• One pare of parallel lines and one pare of
  intersecting lines.

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Turn

• The motion of rotating.

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Vertex

• Where two lines meet to make a point.

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Volume

• The area of a solid figure.

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Credits

• This slide was made by John George and Hunter
  Seufert.
• We both have some thanks to give Google for
  are pictures, to Mrs. Haskell's website for
  definitions, and a very special thanks to my
  great friend Tim A. and Tim M. known as the DA
  TIMS for this amazing help to make are
  background.
• Also thank you for watching are presentation.
• I hope you are now better at Vocabulary.