Question

Three cubes each of side 15cm are joined end to end. Find the total surface area of the resulting cuboid

Answer 1

One cube length is 15 cm

So, when they joined 3 cube the length is 45 cm

And they formed a cuboid

And, The height and Base is same means =15 cm

So,

The formula is 2(l*b+l*h+b*h)

And put them

2(45*15+45*15+15*15)=3, 05,100 the answer is 3,05,100