Skip to main content

Geometry Words

Geometry Words Definations
  • acute angle
    Definition The definition of an acute angle is one that is less than 90 degrees.
  • altitude
    Definition height; esp., the height of a thing above the earth's surface or above sea level.
  • angle
    Definition An angle is defined as a figure that is formed from two lines that meet at a common place.
  • arc
    Definition The definition of an arc is a curve or bowed shape, like a part of a circle.
  • area
    Definition The definition of an area is a specific extent of land or space.
  • chord
    Definition The definition of a chord is a group of musical notes, usually three or more notes, played together to create harmony.
  • circle
    Definition The definition of a circle is a curved line that is the same distance from the center all the way around and connects at the point where it began.
  • circumference
    Definition The circumference is defined as the distance around something round or rounded, especially the distance around the edge of a circle.
  • cone
    Definition The definition of a cone is anything with a circular surface on one end and one point at the other end where all sides or lines meet, or the reproductive, seed-bearing growth of a pine tree.
  • cube
    Definition The definition of a cube is a three-dimensional square with six equal sides.
  • diameter
    Definition Diameter is defined as the length of a straight line through the center of a circle.
  • diamond
    Definition The definition of diamond is set with a diamond, or marking a 60th or 75th year.
  • equilateral
    Definition a figure having equal sides
  • isosceles
    Definition Geom. designating a figure, esp. a triangle, with two equal sides.
  • line
    Definition The definition of a line is a mark connecting two points, something stretched between two things, or two or more people standing in a row.
  • line-segment
    Definition (geometry) A part of a straight line bounded by two points.
  • obtuse angle
    Definition An angle greater than 90° and less than 180°.
  • parallel
    Definition The definition of parallel is extending in the same direction and at the same distance apart.
  • Perpendicular
    Definition The definition of perpendicular is something that is at right angles to something else.
  • point
    Definition The definition of a point is a sharp end or part of an argument.
  • radius
    Definition Radius is a line from the center to the outside of a circle or sphere.
  • rectangle
    Definition The definition of a rectangle is a four-sided figure or shape with four right angles that isn't a square.
  • right-angle
    Definition The definition of a right angle is the meeting point between two perpendicular straight lines.
  • scalene
    Definition designating or of any of three deeply set muscles extending from the first two ribs to the cervical vertebrae, and serving to bend the neck.
  • square
    Definition Square means having four sides of equal length.
  • triangle
    Definition The definition of a triangle is a shape with three angles and three sides.
  • vertex
    Definition Vertex is the top or highest point.