A criminalist is attempting to find the side of a glass pane from ...

[cagreen833]

A criminalist is attempting to find the side of a glass pane from which a shattering force originated. How can this be determined when examining a fragment from a radial crack? A concentric crack?
 
  What will be an ideal response?

Question 2

Triangulation is another name for:
 
  a. convergent validity
  b. construct validity
  c. pragmatic validity
   d. concurrent validity

[mfedorka]

Answer to Question 1

Answer:
In examining the stress marks on the edge of a radial crack near the point of impact, the perpendicular end is always found opposite the side from which the force of impact was applied.
For a concentric fracture, the perpendicular end always faces the surface on which the force originated.

Answer to Question 2

A