Respuesta :

Answer:

65

Step-by-step explanation:

130 + the top angle of he triangle  = 180 (bc they make a straight line)

that would mean the top angle is 50

all triangles interior angles add up to 180

180 - 50 = 130

since there are two Ys 130/2 = 65

each y = 65

65 bc 130÷2 =65

so it's 65