

1. 
Classify the triangle by its angles and by its sides. 





A. 
acute, equilateral 
B. 
acute, isosceles 


C. 
obtuse, scalene 
D. 
obtuse, isosceles 


Hint 


2. 
Classify . 





A. 
right, isosceles 
B. 
right, equilateral 


C. 
acute, scalene 
D. 
obtuse, isosceles 


Hint 


3. 
Find mB in ABC if mA = 85° and mC = 11°. 


A. 
6° 
B. 
92° 


C. 
104° 
D. 
84° 


Hint 


4. 
Find mE in DEF if mD = 34° and mE = 117°. 


A. 
56° 
B. 
61° 


C. 
63° 
D. 
29° 


Hint 


5. 
Classify the triangle by it angles and by its sides. 





A. 
acute, equilateral 
B. 
right, isosceles 


C. 
acute equilateral 
D. 
acute, isosceles 


Hint 


