Question

What will be the surface area of cubiod when dimension is given?

Answer 1

Surface Area of a Cuboid

The total surface area (TSA) of a cuboid is the sum of the areas of its 6 faces, which is given by:

TSA = 2 (lw + wh + hl) 





Remember the surface area is the total area of all the faces of a 3D shape.
The lateral surface area of a cuboid is given by:
LSA = 2 (lh + wh) = 2 h (l + w)

Example 1: Find the total surface area of a cuboid with dimensions 8 cm by 6 cm by 5 cm. 
TSA = 2 (lw + wh + hl) 
TSA = 2 (8*6 + 6*5 + 5*8) 
TSA = 2 (48 + 30 + 40) 
TSA = 236 
So, the total surface area of this cuboid is 236 cm2.

Answer 2

Curve surface area = 2(l + b) * h

Total surface area = 2(lb + bh + hl)

Volume = l*b*h

l = length

b = breath

h = height