Question

A cuboidal box has dimensions 15cm × 12cm × 10cm and an another cubical box has each edge equal to 12 cm.

1. Which box has greater total surface area and by how much?
2. Which box has smaller lateral surface area and by how much?​

Answer 1

Answer:

A cuboid has six faces and the total surface area is the sum of the surface area of the 6 faces and the Lateral surface area is the sum of the area of the four faces. Thus, the cubical box has a greater lateral surface area by 40 cm2 and the cubical box has a smaller total surface area by 10 cm2.