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9 February, 08:58

A triangle has one 80° angle and two sides that each measure 10 cm in length. Which are the measures of the other two angles?

A. 10° and 10°

B. 20° and 20°

C. 40° and 40°

D. 50° and 50°

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Answers (2)
  1. 9 February, 09:02
    0
    D. 50° and 50°

    Step-by-step explanation:

    Whenever we have a triangle the sum of its internal angles must result in 180°

    We can test case by case to see how much it gives us as a result

    A)

    80° + 10° + 10° = 100°

    Wrong answer

    B)

    80° + 20° + 20° = 120°

    Wrong answer

    C)

    80° + 40° + 40° = 160°

    Wrong answer

    D)

    80° + 50° + 50° = 180°

    Correct answer

    Only option D is possible
  2. 9 February, 09:06
    0
    D. 50° and 50°.

    Step-by-step explanation:

    80° + 50° + 50° = 180°.
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