Carpet size measurement is key to determine a benchmark straight edge. Type the following points to introduce various shapes of carpet measurement method:
A, triangle carpet:
Triangle need condition is: the length of three sides.
Second, the quadrilateral carpet:
Quadrilateral need conditions as follows: 1. The length of the four sides. 2. The length of two diagonals.
Three, polygon carpet:
Polygon need conditions as follows: 1. The length of each edge. 2. Can be connected to the horn to the straight line distance (pillars that hinder), or diagonal.