Answer: Statement 1: postulate; Statement 2: definition
Explanation:
- A postulate is assumed to be a fact and used to derive conclusions about any argument .
- A definition is a brief explanatory statement of a term.
- A theorem is a statement that can be proved to be true by using given, definitions, postulates or prior proved theorems .
Here, Statement 1:If parallel lines have a transversal, then corresponding angles are congruent.
which is a fact, and hence it is postulate.
Statement 2: A line has an infinite number of points extending in opposite directions.
which is an explanatory statement of a 'line', hence it is 'definition.
So the correct option is Statement 1: postulate; Statement 2: definition