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15 January, 21:10

Which lengths could be the sides of a triangle?

A.

17 cm, 5 cm, 13 cm

B.

5 cm, 17 cm, 12 cm

C.

20 cm, 15 cm, 4 cm

D.

15 cm, 20 cm, 3 cm

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Answers (2)
  1. 15 January, 21:28
    0
    The sum of the smaller sides exceeds the larger side ...

    A - - > 13 + 5 = 18 - - > 18>17 - - > triângulo
  2. 15 January, 21:33
    0
    The answer is A. 17 cm, 5 cm, 13 cm

    For the triangle:

    a+b > c

    b+c > a

    a+c > b

    Check all choices:

    A. 17 cm, 5 cm, 13 cm

    a = 17

    b = 5

    c = 13

    17+5 = 22

    22 > 13

    5+13 = 18

    18 > 17

    17+13=30

    30>5

    If you check other choices, you will see they are incorrect.
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