Answer:
The two shapes are not similar. Meaning they are not the same shape and the corresponding sides are not proportional. At first when comparing corresponding sides it seems that ABCDEGF is 2 times bigger than HIJKLMN.
CD is 4 units & JK is 2 units (this is 2 times bigger)
DE is 2 units & KL is 1 unit (this is 2 times bigger)
EF is 2 units & LM is 1 unit (this is 2 times bigger)
FG is 1 unit & MN is 1 unit (THIS IS NOT 2 TIMES BIGGER)