Hello there!
To do this, we will take the square root from each side
4^2 would be 4
16 would be 4
4 = 4
I hope I helped!
~ Fire
Answer:
No, it is incorrect. The line should be solid, not dotted, because it's a ≤ sign, not a < sign.
So first you do length x width x height in this case 1.4 x 1.4 x 1.4