1. 
Jennifer was bisecting an obtuse angle, but the resulting two angles seemed to be smaller than 45°. Is this possible? What is the possible range of angles resulting from the bisection of an obtuse angle? 


3. 
In the figure, _{}_{}_{}, _{}_{}_{}, and m_{}DBC=26. Find m_{}ABE.


4. 
In the figure, _{}_{}_{} and the measure of _{}ADE is 12 less than 3 times of the measure of _{}CDE. Find the measure of _{}EDB.


5. 
Suppose there are _{} noncollinear points in the interior of _{}XYZ. How many pairs of adjacent angles are in _{}XYZ? 


7. 
Destiny needed to sketch out a 45° angle in the sand, but all she had was a stick forked at an angle of about 30°. She had an idea for how to use the forked end of the stick as a gauge to mark out the angle she needed. How could she do it? 

8. 
Is it possible for two identical angles located at different places on the earth to be vertical angles? Explain. 
