Question

the dimension of a cuboid are in the ratio 4:2:1 and the total surface area is 2800² find its volume​

Answer 1

Answer:

Surface area of cuboid=2(lb+bh+hl)

Let l=4x,b=2x,h=x

2800=2(8x2+2x2+4x2)

2800=28x^2

100=x^2

X=10 ans

L=4*10=40

B=2*10=20

H=10*1=10

Volume of cuboid =l*b*h=40*20*10=8000 ans