2D Geometry Vocabulary

2D Geometry Vocabulary 3rd grade

23 cards   |   Total Attempts: 188
  

Cards In This Set

Front Back
Acute Angle
An angle that is less than a right angleAn angle that is less than a right angle
Angle
Where 2 lines meet on a plane figureWhere 2 lines meet on a plane figure
Attributes
A characteristic of a shape such as a triangle has 3 sides
Circle
A plane figure in which all the points are the same distance from a point called the centerA plane figure in which all the points are the same distance from a point called the center
Congruent figure
Figures that have the same size and shapeFigures that have the same size and shape
Equilateral Triangle
A triangle with 3 equal sides A triangle with 3 equal sides
Hexagon
A polygon with 6 sidesA polygon with 6 sides
Line of symmetry
A line on which a figure can be folded so that both halves are congruent A line on which a figure can be folded so that both halves are congruent
Obtuse angle
An angle that is greater than a right anglean angle that is greater than a right angle
Octagon
A polygon with 8 sidesA polygon with 8 sides
Pentagon
A polygon with 5 sidesA polygon with 5 sides
Plane Figure
A figure that lies on a flat surfaceA figure that lies on a flat surface
Polygon
A closed plane figure made up of line segment A closed plane figure made up of line segment
Quadrilateral
A polygon with 4 sides
A polygon with 4 sides
Rectangle
A quadrilateral with 4 right angles and opposite sides parallel and the same lengthA quadrilateral with 4 right angles and opposite sides parallel and the same length