You should have prior knowledge on the following:
1. Names of plane figures
2. Names of the first ten polygons
3. Triangles and rectangles
ANGLES OF PLANE FIGURES
PREKNOWLEDGE
Licensed under the Creative Commons Attribution Share Alike License 4.0
1. Names of plane figures
2. Names of the first ten polygons
3. Triangles and rectangles
Licensed under the Creative Commons Attribution Share Alike License 4.0