Answer:
x = 4√2
Step-by-step explanation:
if its a square, all sides similar of 4 units.
then the bottom and side length is 4 units
we need to find x, the diagonal.
formula: a²+b² =c²
: 4² + 4² = c²
: c = √16+16
: c = √32
: 4√2
Therefore x, the diagonal is 4√2