Answer:
40m Since it is the shortest side
Step-by-step explanation:
137.8
I think that the rectangles,L's and I'm not sure about the other ones
hgggggggggggggggggggggggggggggggggjkghjgjkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
find the square of both numbers
13²=169
5²=25
minus the square
169-25 to get 144
find the square root of 144
✓144=12 the third side is 12