This document describes basic 2D shapes - the square, rectangle, and triangle. It notes that squares and rectangles both have four sides and four corners, but squares have all sides of equal length while rectangles have opposite sides of equal length. Triangles are defined as having three sides and three corners. A table is included that can be completed with this information about each shape's name, number of sides/corners, and other key features.

1. 2D SHAPES SHAPE AND SPACE

2. SQUARE CORNER CORNER CORNER CORNER SIDE SIDE SIDE SIDE

3. SQUARE Four sides All the same length or size Four corners Has a face

4. RECTANGLE CORNER CORNER CORNER CORNER SIDE SIDE SIDE SIDE

5. RECTANGLE Four sides The opposite sides are the same length Four corners Has a face

6. TRIANGLE CORNER CORNER CORNER SIDE SIDE SIDE

7. TRIANGLE Three sides Two sides of triangle come together to form corners Three corners Has a face

8. Complete the table. Shapes Name Description Square Has a face Four sides Four corner Rectangle Has a face Four corner Four sides Triangle Has a face Three corners Three sides