Answer:
x= 156
Step-by-step explanation:
i had a test with the same question, i promise its right :)
Answer:
39
Step-by-step explanation:
taking triangle ABC with one angle x other angle b andc
also takin triangle acd
angle c=72 (as the sum of two interior angles=C[cis exterior angle of acd])
angle B=69(180-111[linear pair])
angle x=180-(72+69)
=39
this is correct
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