thanks!A cuboid has a volume of . The base of the cuboid is square with sides of length x metres. the sureface area of the cuboid is .Show that
Please you can leave the question out of quotation tags please? It makes it easier to follow when replying
What is known:
Use the formula for the volume of a cube, given that you have a square base an term should appear. It will be easiest to introduce a new variable for the height - in my case.Code:square base.
Spoiler:
You can now get an expression for the surface area given that it is equal to the sum of it's faces. If you draw a diagram you should be able to find the expression more easily.
Spoiler:
You have simultaneous equations to solve now. Eliminate h as it's not being asked for and get the expression for A