In the given figure, 1 and the 2 and maximum and minimum principal stresses. In order that the resultant stress on the plane AB is the value of should be

In the given figure, 1 and the 2 and maximum and minimum principal s

1.	In the given figure, 1 and the 2 and maximum and minimum principal stresses. In order that the resultant stress on the plane AB is the value of should be
A.	30
B.	45
C.	60
D.	75
Answer» C. 60