Answer:
A = 600 cm²
Step-by-step explanation:
The surface area of a cuboid is given by :
A = 2(lb+bh+hl)
Here, l = b c = 10 cm
Put all the values,
A = 2[10(10)+10(10)+10(10)]
= 2(100+100+100)
= 2(300)
= 600 cm²
So, the surface area of the box is equal to 600 cm².