A closed shape
Only straight line segments (not round)
Can be regular (all sides same length)
Or Irregular (sides are different lengths)
POLYGONS
Two lines that will never intersect
Parallel Lines
Angles that share a ray
Adjacent Angles
A type of triangle
With all acute angles
Acute triangles
For 3D shapes
Points/Corners where three edges meet
Vertices (3D)
A Quadrilateral
A Parallelogram
Four equal length sides
Opposite angles same
Includes squares
Rhombus
Lines that cross
Perpendicular Lines
Adjacent Angles that make a 90 degree angle
Complementary
A type of triangle
With one Obtuse angle
Obtuse triangles
For 3D shapes
A line segment where two faces meet
Edges (3D)
A quadrilateral with
Two sets of parallel sides
Each set is equal in length
Includes rectangles, squares, rhombus
Parallelograms
straight line, never ends in either direction
Line
Adjacent angles that make a 180 degree angle
Supplementary
A type of triangle
With one Right Angle
Right triangles
What is this shape?
A Cube
A Quadrilateral
Two pairs of congruent sides that are
Adjacent to each other.
Not a parallelogram
Two diagonals are perpendicular
The diagonals are not the same length
Kites
part of a line. Has two endpoints
Line Segment
when two lines intersect Angles are made
They are always Congruent / same
Vertical Angles
A type of triangle
Sides are all different lengths
And all different angles
Scalene
triangles
What shape is this?
A Triangular Prism
A Quadrilateral
Only ONE set of parallel sides
Trapezoids
has one endpoint.
Ray
same angels
Angles
Congruent
A type of triangle
With equal length sides
And same size angles
Equilateral
triangles
For 3D shapes
The flat surface of a 3D shape
Faces (3D)