1.what is the base of the rectangle for stage # 12?

2.what is the height of the rectangle for the stage #14?

3.what is the perimeter of the rectangle for stage #10?

4.if the base of the rectangle in 36,what is the stage number?

not much context for these questions.

i guess it's 13

To find the answer to these questions, we need more information about what "stage" refers to in the context. If you provide additional information or context, I'll be able to assist you further.