Directions: Identify the term/definition/postulate/law/theorem that is described in each statement. Write the answer on the
space provided.
1. Any statement that can be proved true.
2. A statement that is accepted as true without proof
3. If an angle is obtuse, then its measure is greater than 90°.
4. If the two angles are complementary, then their sum of measures is 90°.
5. − 1 = − 1
6. If − 4 = , then = − 4.
7. If 2 − = 12 and = 3, then 2(3) − = 12.
8. If two angles have the same measure, then they are congruent.
9. If − 5 = 2 and 3 + = 2, then − 5 = 3 + .
10. If an angle is right, then its measure is 90°.