C is correct. You have to pay attention to the corresponding sequences of the vertices. C is correct because in the three triangles, MON, MPO, OPN are the right angles, respectively. However, the angles are not consistent in other given choices.
An example is n+2 (n being number).
0,2,4,6,8,10...
N(228/100)=33.06 multiply both sides by 100
228n=3306 divide both sides by 228
n=14.5
\left[x \right] = \left[ \frac{5\,y}{158}+\frac{6\,z}{79}\right][x]=[1585y+796z]
