

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





A. 
obtuse, isosceles 
B. 
acute, isosceles 


C. 
obtuse, scalene 
D. 
acute, equilateral 


Hint 


2. 
Classify the triangle by its angles and its sides. 





A. 
obtuse, isosceles 
B. 
acute, scalene 


C. 
acute, equilateral 
D. 
obtuse, scalene 


Hint 


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


A. 
104° 
B. 
6° 


C. 
92° 
D. 
84° 


Hint 


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


A. 
29° 
B. 
56° 


C. 
63° 
D. 
61° 


Hint 


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





A. 
right, isosceles 
B. 
acute equilateral 


C. 
acute, equilateral 
D. 
acute, isosceles 


Hint 


