Teacher c makes the most money at the end of their career since the model is entirely linear.
Since all three sides are different lengths and angles, that triangle would be considered an Isosceles triangle.
From what I think of this question, i think of 9x37 and 8x37 OR 9/37 and 8/37. either way
8x37=296
9x37=333
9/37=0.2432
8/37=0.2162
It is 1/4 of the area of the larger triangle...basically if you connect the three midpoints of the triangle's sides it creates four identical smaller triangles...
The perimeter is one half of the larger triangle...