Step-by-step explanation:



For the first one, we know that is a right angle. right angles are 90 degrees. if we subtract 90 - 49 that equals 41. so the second value needs to equal 41. since we have a 3 there already, we are going to subtract 41-3, which is 38. x = 38
Answer:
<u><em>54</em></u>
Step-by-step explanation:
The answer is AB= 52, because x=15