8×5=40
40h-3=0
+3
40h=3
÷40
h=3/40
Answer:

Step-by-step explanation:
we know that
If LM is the midsegment
then

substitute the given values

Solve for x





SOLUTION
From the question given the following statements to prove are correct, then the last part

The reason is Side-side-side triangle theorem
This theorem states that all three sides of a triangle are congruent (identical) to the corresponding sides of another triangle, then the triangles themselves are also congruent.
Hence the answer is Side-side-side triangle theorem