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Verified Answer :

crisforp

a + b = 180° = 179° 60';
We have a = 37°45';
Then b = 179° 60' -  37°45' = 142°15';
The last answer is the correct answer!

tkf1299

Answer:

If ∠A and ∠B are supplementary and m∠A = 37°45', then m∠B = ______.  

142°55'

52°15’

52°55’

142°15'

Step-by-step explanation:

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