Answer: 104
Step-by-step explanation:
opposite angles are the same. Hence, the angle opposite to 72 degree is 72 degree. The angle opposite to (x+4) is (x+4). The total value of all these angles is 360 degrees.
Hence,
72+72+(x+4)+(x+4)=360
144+(2x+8)=360
2x+8=360-144
2x+8=216
2x=216-8
2x=208
x=208/2
x=104
