Question

the whole surface are of rectangle block 1300m². find its volume if their dimensions are in the ratio 3:2:4​

Answer 1

Answer:

let length be 4x

breadth be 3x

height be 2x

since, total surface area=2(Ib+bh+hl)

so, 1300=2(12x2+6x2+8x2)

1300/52=x2

x2=25 so, X=5

so length=20

breadth=15

height=10

volume=Ixbxh

3000 cm3

Answer 2

Answer:

3000 cm³

step by step explanation

let length be 3x

let breath be 2x

let height be 4x

whole surface area of cuboid =2(lb+bh+hl)

2(6x²+8x²+12x²)=1300

52x²=1300

x=5

length = 15

breath =10

height =20

volume of cuboid =l*b*h

15*10*20= 3000 m³