Question $2$ Construct the Mohr's circle on the graph paper attached in the next page for the stress element shown in the figure below, and, by using the Mohr's circle you constructed, determine:

$($a$)$ principal stresses, principal directions, and express the answers with a stress element;

$($b$)$ the maximum and minimum shear stresses, the directions of the planes they act on$,$ the normal stresses on the same planes, and express the answers with a stress element; and

$($c$)$ values and actual directions of the normal stress and shear stress on plane A$-$A$,$ and express the answers with a stress element.

Note: you are not allowed to use stress transformation equations to get the answers.