Would you be starting an enterprise if you were to open a chain of bookstores?

right angles are formed by perpendicular lines. if the lines would extend, to make two intersecting lines, they would form four right angles.

yes you could be a life guard if that the question.

there is a sequence and logical steps to give an answer of a trouble.

1) strategy is necessary to develop an project idea.

2) to study and know the environment where you are going to work ( ecosystem).

3)   the materials resources to built the ideas.

4) to give a priority order in the context that you study. in this case human needs.