Jamal wrote the following statements:
statement 1: perpendicular lines are two lines that intersect at 90° angles.
statement 2: all right angles are congruent.
which geometry term does each statement represent?
a- statement 1: definition; statement 2: theorem
b- statement 1: postulate; statement 2: definition
c- statement 1: theorem; statement 2: postulate
d- statement 1: postulate; statement 2: theorem