1. 
Given: D and F are complementary. O G K F H and K are complementary. Which of the following must be true?
    K and D are complementary.  
    H and D are supplementary.  


2. 
Given: O and D are supplementary. P and H are supplementary. C J H D Which of the following must be true?
    P and O are complementary.  
    P and O are supplementary.  


3. 
If mABD = (10 + x), the mDBE = (2x  17), the mABC = 32 and the mEBC = (2x  11), then what is the value of x? 

4. 
If mABC = 103 and mABD = 68, then what is the mEBC? 

5. 
If two lines are perpendicular, then they form ___________.
    parallel  
    congruent adjacent angles  
    congruent nonadjacent angles  
    complementary  


6. 
Perpendicular lines are lines that intersect to form ___________ angles.
    parallel  
    obtuse  
    acute  
    right  


7. 
The supplement of an angle is thirtyeight less than three times its complement. What is the measure of the angle? 

8. 
Find the measure of an angle that is four hundred twenty less than three times its supplement. 
