If we’re talking transformations, it’s rotation.
A = L * L
400 = L²
√L² = √400
L = 20
The lenght of each side is 20
It is false because what you need is to multiply 3 x 929.03 and then you get the right value. That is the reason why.
X^n = a
x^2 = 16
Square root of 16 = 4
The root is 4
320,000 / 3,840 = 730,000 / x
cross multiply because this is a proportion
(320,000)(x) = (3,840)(730,000)
320,000x = 2,803,200,000
x = 2,803,200,000 / 320,000
x = 8760 <====