Letting be the length, I would then let be the width, be the area, and be the perimeter.
Can you give the area and perimeter in terms of and ?
The area of a rectangular block of land is 1000m2. If its length is x metres, find the block's dimensions if the perimeter is a minimum?
I have to solve the problem using a composite graph and finding its minimum rathert than using calculus. It would be appreciated if you could help me as I'm really not sure how to approach this
Thank you, I am so silly. I got to the stage of making an equation for the perimeter but broke down because I didn't know what to let it equal to (i.e. thanks to you, I just let it equal P and then subbed values)!
Thanks, I got the (easy) answer!