Question

The length, breadth and height of a rectangular solid are in the ratio 5 : 4 : 2. If its total
surface area is 2432 cm2²
, find the volume of the solid in m3³
.​

Answer 1

Answer:

let length be 5x

breadth be 4x

height be 2x

total surface area=2(20x²+8x²+10x²)=2432

38x²=1216

x²=1216/38

x=√32=5.66

therefore volume=40x³=7240

.77m³