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18 April, 20:35

Which of the following sets of numbers could be the lengths of the sides of a triangle?

a. 7.4 cm, 10.5 cm, 15.5 cm

b. 10.5 cm, 15.5 cm, 4.5 cm

c. 7.4 cm, 15.5 cm, 23 cm

d. 7.4 cm, 10.5 cm, 19.5 cm

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Answers (1)
  1. 18 April, 21:02
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    If we add the 2 least numbers it should be greater than the maximum length of the triangle.

    Therefore the answer a is satisfied.

    7.4 + 10.5

    17.9 cm > 15.5 cm
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