Question

The length , breadth and height of a cuboid are in the ratio 12: 4 : 3.
The length of its diagonal is 39 cm. Find the volume and total
surface area of the cuboid.

Answer 1

Answer:

Lateral surface area of a cuboid = 2 × height × (length + breadth). ... Example 2 : What will be the change in the volume of a cube when its side becomes ... 5 cm and one diagonal as 8 cm.

Answer 2

Answer:

Let l,b,h be 4x,2x,xTSA = 2(lb + bh + hl) 1372 = 2(8x^2 + 2x^2 + 4x^2) 686

= 14x^2 49 = x^2 so x = 7

l,b,h = 28,14,7