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3 May, 17:53

A triangle is sitting on a horizontal line. The bottom left interior angle of the triangle is (9 + k) degrees. The exterior angle to the bottom left interior angle is (5 k minus 3) degrees.

What is the value of k?

k = 28

k = 29

k = 31

k = 42

+1
Answers (1)
  1. 3 May, 18:20
    0
    29

    Step-by-step explanation:

    If you mean the exterior angle at the same vertex as the interior,

    (9+k) + (5k-3) = 180

    9+k+5k-3=180

    6k+6=180

    6k=174

    k=29 degrees
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