Question

10 multiple - choice 2 points which statement is a good definition? vertical angles are angles that are congruent. supplementary angles are two angles whose measure have a sum of 180°. an obtuse angle is an angle whose measure is greater than 90°. an angle bisector is a ray that separates an angle into two smaller angles. clear my selection

Explanation:

1. Vertical angles are congruent, but this is a property, not a definition.
2. Supplementary angles are defined as two angles whose measures sum to 180°, which is a correct definition.
3. An obtuse - angle is defined as an angle whose measure is greater than 90° and less than 180°. The given statement is incomplete as a definition.
4. An angle bisector is a ray that divides an angle into two congruent smaller angles, not just two smaller angles.

Answer:

B. Supplementary angles are two angles whose measure have a sum of 180°.