# data[].attributes.body
http://www.mathopenref.com/constcopysegment.html

# data[].attributes.body
Start with a line segment PQ that we will copy. |
Step 1 | Mark a point R that will be one endpoint of the new line segment. |
Step 2 | Set the compasses' point on the point P of the line segment to be copied. |
Step 3 | Adjust the compasses' width to the point Q. The compasses' width is now equal to the length of the line segment PQ. |
Step 4 | Without changing the compasses' width, place the compasses' point on the the point R on the line you drew in step 1 |
Step 5 | Without changing the compasses' width, Draw an arc roughly where the other endpoint will be. |
Step 6 | Pick a point S on the arc that will be the other endpoint of the new line segment. |
Step 7 | Draw a line from R to S. |
Step 8 | Done. The line segment RS is equal in length (congruent to) the line segment PQ. |

# data[].attributes.body
Start with a line segment PQ that we will copy. Mark a point R that will be one endpoint of the new line segment. Set the compasses' point on the point P of the line segment to be copied. Adjust the compasses' width to the point Q. The compasses' width is now equal to the length of the line segment PQ.