Question

2 Which set of side lengths will form a triangle?

Answer 1

None of the above. To form a standard triangle, all 3 sides must be of equal length.

Answer 2

Answer:

that would be the third one 12 ft, 12 ft, 20 ft because the lengths of 12+12 have enough to reach the 20 length compared to 30+30 which would only equal 60 and no more making it a line.