Answer:
yes the triangle is congruent, because you did not use any transformations you on used translations.
but if you used transformations it would be similar not congruent
 
        
                    
             
        
        
        
To find the GCF:
-- List the factors of the first number.
-- List the factors of the second number.
-- Make a short list of the factors that show up for BOTH numbers.
-- Find the biggest number on the short list.
Factors of the first number (99):  <u>1</u>, 3, 9, <u>11</u>, 33, 99 .
Factors of the second number (121):  <u>1</u>, <u>11</u>, 121 .
Short list (factors that show up for both numbers):  1, 11
Biggest number on the short list:  <em>11</em>