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In the diagram what is x + y in terms of z?

In the diagram what is x + y in terms of z?
  • A.
    180o – z
  • B.
    180o + z
  • C.
    z – 180o
  • D.
    z
Correct Answer: Option A
Explanation

x + y + z = 180(sum of angles in a (bigtriangleup))
x + y = 180 – z

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