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16 December, 15:41

The angles of a triangle are 42º, 63º, xº.

What is the value of x?

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Answers (2)
  1. 16 December, 15:46
    0
    All the angles of triangle add up to 180 degrees.

    so 42+63+x=180

    add 42 and 63 then subtract that from 180.

    42+63 = 105

    180-105 = 75

    so it's 75 degrees.
  2. 16 December, 15:48
    0
    75 degrees because 42+63=105

    180-105=x
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