Answer:
Explanation:
alright lets get started.
For two shapes to be similar , ratio of their sides should be same.
The sides of original figure are 3 and 6.
The sides of first blue figure are 2 and 4.
Now, lets find the ratios of their sides.
Ratio of sides are
and

can be simplified as

So, we see that the ratio of both sides are equal to each other .
Hence, both figures are similar to each other.
So, the answer is first figure, the blue one. : answer
Hope it will help. :)