Answer:
13.9 mm
Step-by-step explanation:
To find the diagonal of the box, x, apply the following formula, d = √(l² + w² + h²)
Where,
d = x
l = 12 mm
w = 5 mm
h = 5 mm
Plug in the values
x = √(12² + 5² + 5²)
x = √194
x = 13.9 mm (nearest tenth)
