Let's do this question, a cowboy little tin box open at the top has dimensions 20 into 16 into 14.
What is the total area of metal sheet required to make 10 such boxes?
All right.
What's the video?
Give it a try and then let's do it together.
All right, we are back.
I hope you have given it a try.
Let's do it together first.
Let's find out the area required for making one such box.
Right.
The area required would be the surface area.
Right.
Because then you just need to fold it in the shape of the box.
So that would be 20 to 16 plus to 20 in the 14 plus two in the 16 into 14.
Right.
Why don't we do 10 to 20 to 16?
Because it's mentioned that the top is open.
Right.
Therefore, you will find that this is equal to one three to eight centimeters square.
Now, that's the area required for one box now.
Hence the area required for 10 boxes will be one three to eight in 10.
That's equal to one three two eight zero centimeter square.