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Mathematics 14 Online
OpenStudy (anonymous):

Which measurement is a possible side length for a triangle with two sides measuring 13 cm and 29 cm? 18 cm 66 cm 42 cm 6 cm

OpenStudy (btaylor):

In a triangle, the sum of any two sides must be greater than the third, and it must work all ways. So 6 doesn't work, 42 doesn't work, 66 doesn't work, but 18 does. So it is 18 cm.

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