Respuesta :
triangle:
180(3-2) = 180
180 - (50+90) = 40
x finding:
2x - 10 = 140
2x = 150
x = 75
check:
2(75) - 10 = 140
140 + 40 = 180
Your answer:
x = 75
angle: 140
triangle:
180(3-2) = 180
180 - (50+90) = 40
x finding:
2x - 10 = 140
2x = 150
x = 75
check:
2(75) - 10 = 140
140 + 40 = 180
Your answer:
x = 75
angle: 140