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What is the value of y?

What is the value of y?-example-1

1 Answer

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Answer:

y = 43

Explanation:

47° , y and 90° lie on the straight line AB and sum to 180° , that is

47 + y + 90 = 180

y + 137 = 180 ( subtract 137 from both sides )

y = 43

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