Question

sabendo que r \\ s \\ t, calcule x e y (só a b e c)

Answer 1

b) y + 10 = 60
y = 50
x+ 20 + 60 = 180
x = 180 - 20-60
x= 180-80 = 100

c) a = 120
b = 180 - a = 180 - 12 = 60
e = 180 - 130 = 50

180 - a + e + c = 180
-a + e + c = 0  
-120 + 50 + c = 0
-70 + c = 0
c = 70

d + c + b = 180
d + 70 +60 = 180
d = 180 - 70-60
d= 180 - 130
d = 50