Respuesta :

The top one on the left:
180-(60+80)= 180-140= 40 degrees
The top one on the right:
180-75 = 105+45= 150
180-150 = 30 degrees
The bottom left:
180-100= 80+65= 145
180-145 = 35 degrees
The bottom right:
90+35= 125
180-125= 55 degrees