Question

Plz answer this qstn?​

Answer 1

Answer:

Step-by-step explanation:

Ratio of sides of cubes is 3:4 :5

Let sides be 3x,4x,5x

Diagonal of bigger cube is 12√3

√3×side =12√3

We get

Side=12

Volume of three smaller cubes=volume of bigger cube

4/3πr1³+4/3πr2³+4/3πr3³=4/3πR³

4/3π(r1³+r2³+r3³)=4/3πR³

r1³+r2³+r3³=R³

27x³+64x³+125x³=1728

216x³=1728

x³=8

x=2

Side of first cube =3×2=6units

Side of second cube=4×2=8units

Side of third cube=5×2=10units