Final answer:
To find the perimeter of a triangle with given side lengths, add up the lengths of all three sides.
Step-by-step explanation:
The sides of a triangle are (1)/(2a), (3a)/(a+2), and (4)/(a).
To find the perimeter of the triangle, we need to add up the lengths of all three sides. So, the perimeter would be:
(1)/(2a) + (3a)/(a+2) + (4)/(a)