I will give brainliest if you get this right

Approximately 8.5 feet

Explanation:

Using Pythagorean Theorem we can say:

6² + 6² = Diagonal²

36 + 36 = Diagonal²

72 = Diagonal²

= Diagonal

8.49 (if rounded to the nearest tenths it would be 8.5) = Diagonal

Hope this helps!

answer: no hard feelings, i just need points

step-by-step explanation:

i need points so i'm not really answering anything.