Question

a cubical box has each edge 10cm and other cuboidal box is 12.5 cm long, 10 m wide and 8cm high

1. which box has the smallest total surface area and by how much ? ​

Answer 1

Step-by-step explanation:

explation is in picture

Answer 2

Step-by-step explanation:

10m convert tocentimetre 1000)

Total surface area =6a^2

=6×10

=600

Total surface of the cuboid = 2(lb+bh+lh)

. =2(12.5×1000+1000×8+12.5×8)

2(12500+8000+100)

2×20600

=41200

Cubical box has smallest total surface area

=41200 - 600

=40600