Question

Please i need help fast! Which of the following sets of numbers could not represent the three sides of a triangle?

Answer 1

{7, 21, 28}

Explanation:

In order for three sides to add up to a triangle, the two shorter sides must have a sum of greater than the longest side.

Since 7 + 21 = 28, and 28 = 28, that group of sides cannot add up to be a triangle.

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