100 points! Please help ASAP! Look at the picture attached. I will mark brainliest

Answer:
Step-by-step explanation:
Midsegment is the half the length of the parallel side of the triangle.
So parallel sides of the triangles, which are the side of the base of the pyramid are:
Answer:
the length of the base of the pyramid =2×58=116
since the mid segment line from the midpoint is half of the third one or base.