2-D Shapes
What is a 2D Shape and how do we define it?
A 2D shape has two dimensions of space; Width and Height.
Height
Width
A 2D Shape has angles and sides
Angles
A 2D Shape has angles and sides
Sides
How many angles and sides does this shape have?
3 Sides3 Angles
What are parallel lines?Parallel Lines are 2 or more lines that run next to each other in the same direction.
No matter how long they are, they will never meet.
Parallel Lines
Unparallel Lines
How many Angles, Sides and Parallel Lines do these shapes have?
2
4
6
3
5
1
7
1Angles: 4Sides: 4Parallel Lines: 2
2Angles: 0Sides: 1Parallel Lines: 0
3
Angles: 5Sides: 5Parallel Lines: 0
4
Angles: 4Sides: 4Parallel Lines: 2
5Angles: 6Sides: 6Parallel Lines: 3
6
Angles: 4Sides: 4Parallel Lines: 1
7
Angles: 12Sides: 12Parallel Lines: 2
1. Four straight sides and four angles
2. Three sides and three angles
3. Two sides
4. Six angles
5. Four straight sides and one set of parallel lines
6. Eight sides
7. Five sides
8. One side and zero angles