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24 August, 21:44

Which dimensions cannot create a triangle? a three sides measuring 6 cm, 8 cm, and 10 cm b three angles measuring 40 degrees, 70 degrees, and 65 degrees c three angles measuring 10 degrees, 25 degrees, and 145 degrees d three sides measuring 9 m, 15 m, and 9 m

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Answers (2)
  1. 24 August, 21:57
    0
    A, C, D are triangles, B is not.

    Step-by-step explanation:

    Let 3 sides of a triangle be a, b, c.

    A triangle have the sum of 3 angles = 180 degree

    and

    a-b
    a. three sides measuring 6 cm, 8 cm, and 10 cm

    Satisfied the a-b
    b. three angles measuring 40 degrees, 70 degrees, and 65 degrees

    Total of 3 angles = 40+70+65 = 175 > 180

    -> not triangle

    c. three angles measuring 10 degrees, 25 degrees, and 145 degrees

    Total of 3 angles = 10+25+145 = 180

    -> triangle

    d. three sides measuring 9 m, 15 m, and 9 m

    Satisfied the a-b
  2. 24 August, 21:58
    0
    C

    All triangle must equal 180, 40 + 70 + 65 = 175
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