Measure 10: Elbow

Place the tape measure at the center of the elbow.
Move on this prospective and take the picture

Always take care of: Try to take exactly the same picture you see above.
We have to see the edge of the tape measure (the metallic part as shown in the picture).

If you are not sure about a picture, take more pictures.
(Don't worry, if you would take a wrong picture or wrong measure we will ask you to do it again)