Answer:
I think its j
Step-by-step explanation:
 
        
                    
             
        
        
        
The opposite angle is also 80°. since consecutive angles must total 180, the other 2 angles are 100 each. 100+100+80+80=360, as needed for a parallelogram
        
                    
             
        
        
        
Answer:
4
Step-by-step explanation:
ΔABC is congruent with ΔDEF.  That means the corresponding sides are congruent.
Look at the order of the letters.  EF are the last two letters of ΔDEF.  So this corresponds with the last two letters of ΔABC.  Therefore, EF ≅ BC.
EF ≅ BC
x² + 8x = 48
x² + 8x − 48 = 0
(x + 12) (x − 4) = 0
x = -12 or 4
Since x can't be negative, x = 4.
 
        
             
        
        
        
5:3 x 6:2 can also be written as a fraction
5/3 x 6/2
Multiply across
30/6
Simplify
5/1
Rewrite
5:1 is your answer, or if your teacher does not want it simplified, 30:6
Hope I helped! :)
        
             
        
        
        
Answer:
The answer is
Step-by-step explanation:
This is from khan academy. so You need to watch a video on khan academy to get help.