Question

three cubes whose edges measures are 3 cm 4 cm 5 cm respectively are melted to form a single cube find its edge

Answer 1

Hey,
Total Surface areas of the three cubes =6*3^2+6*4^2+6*5^2
=54+96+150
=300.
So, total surface of resulting cuboid=300
->6*side^2=300
=side^2=50
side=5√2cm.
Hope this helps you buddy!!!!!!!