Answer :
Answer:
48a^4
Step-by-step explanation:
1) use the Pythagorean theorem to find the hypotenuse
[tex]\sqrt{(12a^4)^2 + (16a^4)^2}= \sqrt{144a^8+256a^8} = \sqrt{400a^8} = 20a^4[/tex]
2) find the perimeter
[tex]12a^4 + 16a^4 + 20a^4 = 48a^4[/tex]