Final answer:
The possible lengths of the third side of the triangle are any values greater than 5.33 feet.
Step-by-step explanation:
The possible lengths of the third side of a triangle can be determined by applying the triangle inequality theorem. According to this theorem, the sum of any two sides of a triangle must be greater than the length of the third side. In this case, the two given sides are 2 feet and 40 inches. To compare them, convert both lengths to the same unit—either feet or inches.
Since 1 foot is equal to 12 inches, the length of the second side in feet is 40 inches ÷ 12 = 3.33 feet (rounded to two decimal places).
Now, let's apply the triangle inequality theorem. The sum of the two given sides must be greater than the third side:
2 feet + 3.33 feet > Third side length
5.33 feet > Third side length
Therefore, the possible lengths of the third side of the triangle are any values greater than 5.33 feet.