1 . A cubicbox haseach edge 10cm and another cuboidal boxis 12.5cm lon

1.	1 . A cubicbox haseach edge 10cm and another cuboidal boxis 12.5cm long, 10cmwide and 8 cm high.Which box has the greater lateral surface area and by how much?
Answer» Lateral surface area of cubical box of edge 10cm = 4×102cm^2= 400cm^2 Lateral surface area of cuboid box = 2(l+b)×h = 2×(12.5+10)×8= 360cm^2 Thus, lateral surface area of the cubical box is greater by (400 – 360)cm^2= 40cm^2

1 . A cubicbox haseach edge 10cm and another cuboidal boxis 12.5cm long, 10cmwide and 8 cm high.Which box has the greater lateral surface area and by how much?

Answer»

Lateral surface area of cubical box of edge 10cm = 4×102cm^2= 400cm^2

Lateral surface area of cuboid box = 2(l+b)×h = 2×(12.5+10)×8= 360cm^2

Thus, lateral surface area of the cubical box is greater by (400 – 360)cm^2= 40cm^2