Question

A cuboidal box has following dimensions: Length = 5x Breadth = 2x Height=x
a) Find the volume of cuboid.
b) Find the lateral surface area of cuboid.
c) Find the total surface area of cuboid​

Answer 1

Answer:

We know that

Volume of cuboid =l×b×h

Volume of cuboid =12×8×4.5

Volume of cuboid =432 cm3

We know that

Lateral surface of a cuboid =2(l+b)×h

Lateral surface area of a cuboid =2(12+8)×4.5

Lateral surface area of a cuboid =2×20×4.5

Lateral surface area of a cuboid =180cm2

We know that 

Total surface area of cuboid =(Ib+bh+Ih)

Total surface area of cuboid =2(12××8+8×4.5+12×4.5)

Total surface area of cuboid =2(96+36+54) 

Total surface area of cuboid =2×186

Total surface area of cuboid =372 cm