Parallel graphs have the same slope. perpendicular has opposite reciprocal slopes. These equations have slopes of -2/5 and 25 so they are neither.
Triangle
1+1+5=7
7×4=28
28÷2=12
rectangle
12×5=60
whole shape
60+12=72in squared
0.5477225575 ... u have to change this in scientific notation
It should be 1 over 2 or 1 over 11 but im pretty sure its the first one I picked