Question

Statements Reasons
1. m∠ABD=60°, m∠DBC=40° Given
2. m∠ABD+m∠DBC=m∠ABC
3. Substitution Property of Equality
4. Simplifying
5. ∠ABC is an obtuse angle.
6. △ABC is an obtuse triangle. Definition of obtuse triangle

Answer 1

Answer:

where is the figure for 6 maybe angle is obtuse because it is more than 90 degree