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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

Respuesta :

Kunchan
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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