Answer:
65, 90, 30, 24(in order abcd)
Step-by-step explanation:
The sum of all angles in a triangle is 180 degrees, so knowing this, you should be able to get all of them.
1) x+65+50 = 180, so x= 65
2)x+34+56 =180, so x= 90
3)90+3x=180, so x=30
4)90+66+x=180, x=24
