Working with Angles
Topic Index | Geometry Index | Regents Exam Prep Center


Answer the following questions which deal with angles.  To see the correct answer, click on the box to the right of the question.

1.

What do you call an angle whose measure is 90° ? 
  



 

2.  

 

An acute angle is any angle whose measure is less than 180°.
(True or False)



 

3.

Angles 1 and 2 are adjacent angles.
(True or False)
 



 

4.

Two complementary angles measure x and 65°. 
How many degrees are there in x ?
     



 

5.

Two vertical angles measure x and 45°. 
How many degrees are there in x ?
          

  


 

6.

Two supplementary angles measure x and 75°.
How many degrees are there in x ?
   

 


 

7.

Two vertical angles measure 2x and 80°.
How many degrees are there in x ?
        

 



 

8.

Two complementary angles measure (2x+10) and (x+20) degrees.  What is the value of x ?
  



 

9.

Two supplementary angles measure (5x-30) and (x+90) degrees.  What is the value of x ?
                                                                       



 

10.  

An obtuse angle is any angle which measures between 90° and 180°.
 (True or False)