Answer:
x = 12√2
Explanation:
if its a square, all sides similar of 12 units.
then the bottom and side length is 12 units
we need to find x, the diagonal.
formula: a²+b² =c²
: 12² + 12² = c²
: c = √144+144
: c = √288
: c = 12√2
Therefore diagonal, x is 12√2