17/11/2019
2D Shapes
L.O. 1) Know what a 2D shape is
2) Know the names of the most common
2D Shapes
Key words: dimensional, flat,
Starter: complete the sheet on your desk
2D Shapes
2D stands for 2 Dimensional.
A 2D shape is a flat shape, usually made of
straight lines.
2D
not 2D
1) Know what a 2D shape is
Common 2D shapes
Triangles
There are four types of triangles that you need
to know:
1)
2)
a
Equilateral Triangle
3 sides the same length
3 angles all the same
b
Isosceles Triangle
2 sides the same length
Angles a & b are the same
Triangles continued:
3)
4)
Scalene Triangle
No sides the same length
No angles the same
Right-Angled Triangle
Has a right angle
Could be Scalene or Isosceles
2D or Not 2D
Know the names of the most common
2D Shapes