6th Grade Math Textbook, Progress

Lessons 1–20

(See Still More Practice,p. 528.)

Use the figure below right for ex. 1–5. Classify each angle

as right, acute, obtuse, orstraight. Then use a protractor to

find the exact measure of each angle. (See pp. 330–335.)

1. 
   DOF 2.
   AOF


2. 
   AOB 4.
   BOF


3. Which angles are complementary? supplementary?

Use the figure at the right to name the angles. (See pp. 336–337.)

6. the corresponding angle to
   AEH


7. the alternate interior angle to
   BEF


8. the alternate exterior angle to
   GFD

Use a compass and a straightedge. (See pp. 338–347.)

9. Trace
   ABCon unlined paper.
   Then construct
   DEF
   
   ABC.


10. Bisect
    DEFfrom exercise 10.

Find the value of the variable in each polygon. (See pp. 348–351, 354–365.)

11. 
    
    
    
    12. 
        
        
        
        13. 
            
            
            
            14. 
                
            
            
            
            
        
        
        
        
    
    
    
    

Draw the translation, reflection, and Draw a net for the solid figure.

rotation image. Use dot paper.

15. 
    
    
    
    16. 
        
        
        
        17. 
            
            
            
            18. 
                
            
            
            
            
        
        
        
        
    
    
    
    

A

B

D

OF

AE

G

H

F

B

CD

B

A

C

P Q

O

45 °

n

n C

B

D

A

85 °

75 °

85 °

n

Y

V X

W

Z

110 °^110 °

n

K

J

Q

P O

N

M

L

92 °

116 °

161 °

135 °

160 ° 120 °

142 °

ABCD




19. Mel colors
    

1

2 
of a circle red. He then

marks off a sector with a central angle

of 40° and colors it blue. What is the

measure of the central angle of the

sector that is not red nor blue?

20. Complete the analogy and explain your
    answer: A rectangle is to a pentagonal
    prism as a is to a hexagonal
    pyramid.

?

(See pp. 352–353, 366–369.)

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