Respuesta :

Answer:

the answer is 10

Step-by-step explanation:

92+78=170

180-170=10

theres 180 beacuse every straight line has the angle of 180

fnej

Answer:

x = 10

Step-by-step explanation:

These 3 angles are supplementary so they all equal 180:

92 + x + 78 = 180

x + 170 = 180

x = 10