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Calculate the value of Y in the diagram

Calculate the value of Y in the diagram

  • A.
    18o
  • B.
    42o
  • C.
    48o
  • D.
    132o
Correct Answer: Option C
Explanation

x = 180° – 123° = 57°

z = 180° – 105° = 75°

y = 180° – 57° – 75° = 48°

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