Answer:
In triangle ABC one side equal  and two sides equal
 and two sides equal 
Step-by-step explanation:
We are given a prism whose base is square with sides 8 in and height 12 in. 
If we take cross section through vertices A, B and C 
We will get a cross section as triangle. 
In triangle ABC, sides are AB, BC and AC 
AB is diagonal of top square whose side 8 in. 

AC is face diagonal of front face. 

BC is face diagonal of right face. 

AC=BC≠AB
Hence, In triangle ABC one side equal  and two side equal
 and two side equal 