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 180 degree angle
Supplementary Angles
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 90 degree angle
Complementary Angles
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
Angles that are made when two lines intersect. They are always Congruent / same
Vertical Angles
A type of triangle. Sides are all different lengths and all different angles
Scalene triangle
What shape is this?
A Triangular Prism
A Quadrilateral. Only ONE set of parallel sides
Trapezoids
has one endpoint.
Ray
same angles
Congruent angles
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)