The length, breadth and height of a cuboid are 2 m, 5 m and 4m respectively.
1) What is the difference between total surface area and curved surface area ?
2) If a cube of side measuring 100cm is placed inside the cuboid, what is amount of void space in the cuboid? [4 MARKS]
Formula: 2 Marks
Application: 1 Mark each
1) Difference
=2(lb+bh+lh)−2h(l+b)
=2lb=2×2×5=20m2
2) Amount of void space
= Volume of cuboid - volume of cube
=lbh−side3
=2×5×4−13
=39m3