Question

if three cubes of side a are joined consecutively then find the volume and total surface area l of cube so obtained ​

Answer 1

The dimensions of the cuboid so formed are as under:

l= length=15cm,b= breadth=5cm, h= height =5cm

Surface area of the cuboid =2(15×5+5×5+15×5)cm

2

=2(75+25+75)cm

2

=350cm

2