__ are basic true statements accepted without proof. Each statements below is incorrect. Rewrite each statement so that it is true. 9. if two planes intersect, then they intersect in exactly one plane

Question

the first things is a blank. i need to know how to make 9. true

Answer 1

The blank might be filled with "axioms", although other words might be substituted.

The last word in 9 is incorrect. Think about it...visualize it...look at the corners of the walls in which you are sitting...that should give you the right answer.