Answer:
Therefore the Equation and missing value is
 .............Equation for the Diagram
 .............Equation for the Diagram

Explanation:
Given:
Let Label the Diagram such that



To Find:
Equation =?
x = ?
Solution:
Here Total Length is given in Two Parts



For a Line A-B-C 
 ..............Line Addition Property
 ..............Line Addition Property
Substituting the values we get
 ...Equation for the Diagram
 ...Equation for the Diagram

Therefore the Equation and missing value is
 ...Equation for the Diagram
 ...Equation for the Diagram
