Which of the following are possible side lengths for a triangle?
A. 10, 12, 3
B. 14, 8, 3
C. 15, 5, 9

Answer: The answer is A
Step-by-step explanation: In order for it to be a triangle when you add up two sides they have to be greater than the third side. (EX... 10+12=22 which is greater than 3, 10+3=13 which is greater than 12, and 12+3=15 which is greater than 10)