Vocabulary
A closed figure that has straight lines, which don't intersect
What is a polygon?
A 2D shape with 3 sides and 3 vertices
What is a triangle?
8 vertices
6 faces
12 edges
The base is a rectangle.
What is a rectangular prism?
Is a heart shape a polygon? Why or why not?
No, it has curved lines, not straight lines.
A 2D shape with 5 sides and 5 vertices
What is a pentagon?
6 vertices
5 faces
9 edges
The base is a triangle.
What is a triangular prism?
A square, rhombus, rectangle, and trapezoid are all _________.
Quadrilaterals
A 2D shape with 6 sides and 6 vertices
What is a hexagon?
5 vertices
5 faces
8 edges
The base is a square.
What is a square pyramid?
When two points meet it is called?
Vertex or corners
A 2D shape with no sides or vertices
What is a circle?
4 vertices
4 faces
6 edges
The base is a triangle.
What is a triangular pyramid?
All flat areas on 2D or 3D shapes is called?
Faces
A 2D shape with 10 sides is called?
Decagon
8 vertices
6 square faces
12 edges
cube