Please help! Will mark brainliest if correct! Must show work or no brainliest >:( Worth 40 pts. ITS NOT RECTANGLE.

Answer:
its triangle and 3-D one!
Step-by-step explanation:
:)
Answer:
triangle - Option A
Step-by-step explanation:
A base of a triangular prism is always a triangle. Don't be fooled by the diagram.