Question

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Answer 1

Answer:

Step-by-step explanation:

AB // CD

So we can say BD is a transversal

So angle ABD = angle CDB(opposite interior angles are equal)

= 30 degrees

x = 30

Similarly

In triangle ABD,

now sum of angles in a triangle = 180

So , x+y+80 = 180

110 + y = 180

y = 70

In triangle BCD,

y-30 = 40

40+30+z = 180

z = 110