Question

An iron cube of edge175cm is melted to from a cuboid of base 2.25* 85cm find the height of cuboid so formed .

Answer 1

Cube is melted and form cuboid

So, volume of cube = volume of cuboid

(side) cube=L*B*H

175*175*175=2.25*85*H

5359375=191.25*H

Therefore, H=28022.8cm

Or 280.22m

Answer 2

since the cube is melted, then the area of the cube will be equal to that of the cuboid so formed.

=>a*a*a=l*b*h

=>175*175*175=2.25*85*h

=>5359375=191.25*h

=>h=5359375/191.25

therefore, h=28022.87 cm

or,

280.22 metres.

hope it helps you :)