Question

A closed rectangular wooden box has inner dimension 90cm by 80cm by 70cm compute its capacity and the area of the tin foil needed to line its inner surface

Answer 1

The wooden box has the shape of a "Cuboid". A cuboid is a solid which has six rectangular faces at right angles to each other.

We are given the three dimensions of the cuboid:

• Length = 90 cm = 0.9m
• Width = 80 cm = 0.8m
• Height = 70 cm = 0.7m

The capacity (volume) of the cuboid = L*W*H = 0.9*0.8*0.7 = 0.504 $m^3$.

The area of the tin foil = area of the cuboid = 2(L*W + L*H + W*H)

= 2(0.9*0.8 + 0.9*0.7 + 0.8*0.7) = 3.82 $m^2$

Answer 2

Hope it helps uhh ✌.....✌