A closed shape
Only straight line segments (not round)
Can be regular (all sides same length)
Or Irregular (sides are different lengths)
POLYGONS
For 3D shapes
A line segment where two faces meet
Edges (3D)
A type of triangle
With equal length sides
And same size angles
Equilateral
triangles
Angles that share a ray
Adjacent Angles
Anything times zero = zero
Zero property
of multiplication
A quadrilateral with
Two sets of parallel sides
Each set is equal in length
Includes rectangles, squares, rhombus
Parallelograms
What shape is this?
How many Vertices/Edges/Faces?
A Triangular Prism
Vertices: 6
Edges: 9
Faces: 5
A type of triangle
With two sides the same
And two angles the same
Isosceles
triangles
Adjacent Angles that make a 90 degree angle
Complementary Angles
Anything times one = itself
Identity property
of multiplication
Lines that cross, making four right angles
Perpendicular Lines
For 3D shapes
Points/Corners where three edges meet
Vertices (3D)
A type of triangle
Sides are all different lengths
And all different angles
Scalene
triangles
Adjacent angles that make a 180 degree angle
Supplementary Angles
3 x 4 = 4 x 3
Commutative Property
of multiplication
Two lines that will never intersect
Parallel Lines
For 3D shapes
The flat surface of a 3D shape
Faces (3D)
A type of triangle
With one Right Angle
Right triangles
Angles that are made when two lines intersect.
They are always Congruent / same
Vertical Angles
(3 x 4) x 5 = 3 x (4 x 5)
Associative Property
of multiplication
A Quadrilateral
A Parallelogram
Four equal length sides
Opposite angles same
Includes squares
Rhombus
What is this shape?
How many
Vertices/Edges/Faces?
A Cube
Vertices: 8
Edges: 12
Faces: 6
A type of triangle
With one Obtuse angle
Obtuse triangles
Congruent means “same”
Congruent
Angles
Distribute whatever is right outside the parentheses
3 ( 2 + w) = 6 + 3w
Distributive Property
of multiplication