Two sides of a triangle are 10 mm and 7 mm. Determine the length of the third side from the choices given.(1 point)
2 mm
20 mm
1 mm
5 mm
From the given information, we can determine that the third side must be greater than the positive difference and less than the sum of the other two sides.
Therefore, the third side must be greater than |10 - 7| = 3 mm and less than 10 + 7 = 17 mm.
Therefore, the only choice from the given options that falls within this range is:
5 mm
Therefore, the length of the third side is 5 mm.