Hello there, and thank you for posting your question here on brainly.
You have to use this line of equations to solve. ( 1/4h√-a^4 + 2(ab)² + 2(ac)² - b^4 + 2(bc)²- c^4 ).
a, b, and c being the base sides, and h being height.
After that, the final product is ≈ 672.69
Hope this helped! ☺♥
