Question

Please help I’ll give you brainleast and thanks

Answer 1

Answer:

i got 49

i think its correct

Step-by-step explanation:

Answer 2

All angles in a triangle must add up to 180. So 90+49+?=180 in order to find the. Mystery number we add 90+49 to get 139. And then we figure out what number plus 139 equals 180 . That number would be 31