 Hello and welcome to the session. My name is Mansi and I am going to help you with the following question. The question says a cubicle box has each edge 10 cm and another cuboidal box is 12.5 cm long, 10 cm wide and 8 cm high. First part is which box has the greater lateral surface area and by how much and second part is which box has the smaller total surface area and by how much. Let us start with the solution. We see the solution to the first part first of all. We see that the lateral distinguish this length with this we can denote this by L' that is of cubicle box is 10 has to be 12 for the cuboidal box. Breadth is given to be 10 cm the value is here and then we compare the two. So let us see the lateral surface area of cubicle box. This will be final lateral surface area of cuboidal box that will be equal to twice of. Now length plus breadth would be cm into height that is 8 cm cm square. So lateral surface area of cubicle box is 400 cm square and lateral surface area of cuboidal box is 350 cm square. When we compare these two we see that lateral surface area of cubicle box is greater and it is more by 400 minus 360 that is 40 cm square. So let us write down the answer to the first part that is lateral surface part of the question. Now let us see the answer to the second part of the question but the value of L' is 10 cm from the earlier part. So that is equal to 600 cm square into breadth plus breadth in 10 cm square. So we see that the total surface area of cuboidal cm square. So this was our solution to this question. I hope that you understood the question and enjoyed the session. Have a good day.