Question

Which triangles are similar to triangle ABC Choose 1 answer: A DEF B GHI C Both D None

Answer 1

Let's prove triangle DEF:
10/7=1.428571429 different to 1.5=9/6, then triangle DEF is not similar to triangle ABC

Let's prove triangle GHI:
3.5/7=0.5=3/6, then triangle GHI is similar to triangle ABC

Answer: Option B.  GHI