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so for the first one, I got this 

 D + B = 180   and A + C = 180

since A+C=180 and we know what C is, 74  then A + 74 = 180 am i correct?

 

 

for the second one, i got 77 degrees is this right?

 

the answer i got for this one is 180 but i feel like im wrong

 

 

I got 62 is this correct

 

 

this one is actually a bit hard wasn't able to solve it

 
 Mar 28, 2018

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