2.6 Excercises – The Basics of Angles
1.Group the angles in the pictures below.
 
a) Acute angles
b) Right angles
c) Obtuse angles
d) Straight angles
 
 
2. How big is the angle?
a)
  ΛA =
b)
  ΛB =
c)
  ΛD = =
d)
  ΛC =
e)
  ΛV =
f)
  ΛE =
g)
  ΛX =
h)
  ΛQ =  
 
 
3. Supplementary Angles
 
 

Which of the angles above are supplementary angles to Λa?

 
 
 
4. Vertical Angles
 
  Which angles are vertical angles to each other?
 
 
 
5. Corresponding Angles with Parallel lines
 
 

Which of the angles are corresponding angles to Λe?

 
 
 
6. Alternate Angel at Parallel Lines
 
 

Which angles are alternate angles to Λa?

 
 
 
7. What is the angle pair called?
 
 

Λx and Λy are each other’s ..........

   
 
 
8. Complementary Angles
  How big is the complementary angle to an angle which is 32º?
 
 
 
9. Angle Sums
 
 

How big is the angle sum for this regular polygon?