Geometrical contribution to mathematical matters is one of the most important.

What is working now by geometric?
We can generally say that through geometry, it is possible to make many difficult tasks very easily. So we all use geometry.

Easy way

1. Scale
2. Cut compass
3. Rule
4. Rubber
5. Cutting
6. Triangle

Scale: Keep scale work on the scale of the scale.
Cut Compass: The compass is the circle.
Rubber: Rubber is used for wiping.