Guest: What is the perimeter of an isoscolese trapezoid called T R A P if P T is 27.5m and T R is 58.8m and the length of the bisector of segment R A and segment T P is 47.6?
I had to make assumptions about which sides you were referring to but my diagram illustrates my assumptions. It might be different from what you intended.
This is what I think.
PA / 47.6 = 47.6 / 58.8
PA = 47.6
2 / 58.8
PA = 38.53 repeater = approx 38.53m
Therefore the perimeter is 58.7m + 27.5m + 38.53m + 27.5m
If you need to justify any of this it will require more work.
140121 isosceles trapezium.JPG
+118654 
