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8 September, 19:51

Which set of angle measures could be the measures of the interior angles of a triangle?

A. 90°, 42°, and 58°

B. 60°, 60°, and 60°

C. 100°, 48°, and 42°

D. 31°, 75°, and 70°

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Answers (2)
  1. 8 September, 20:44
    0
    Sum of all interior angles of a triangle must be 180°. Summing 60° 3 times will give you 180°. Hence option B is correct.
  2. 8 September, 22:05
    0
    Okay so this is simple addition, once you know how to do it.

    The interior angles of a triangle should always add up to 180 Degrees.

    Now that you know this, all you have to do is add the numbers together and see which ones add up to 180 degrees.

    A. - 90+42+58=190

    B. - 60+60+60=180

    C. - 100+48+42=190

    D. - 31+75+70=176

    Out of these choices the only one that adds up to 180 is B. So your answer would be B.
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