GSCE Maths "The Fencing Problem"Watch
Since when are there women farmers?
Well this is only true when the perimeter fixes all other parameters.
I know- like in the case of an equilateral triangle, circle and square which is what i said! Of course it doesnt for a rectangle, isosceles triangle, etc.......
rite im doin the same as the fencing coursework but its guttering, i have been asked to apply the calculus method to get an a* in the coursework, i kinda know how to do the actual coursework itself but i dont understand what calculus does... ne help?
In this case for ur fencing/guttering problem, u are investigating how the area changes as the variable x (which changes the dimensions of your polygon) changes. If you plot a graph of dimension against area, it will follow some function (eg a quadratic of ax^2 + bx + c). The calculus that theone is doing here is called Differentiation, where u investigate at what point on the graph the area is at a maximum/minimum/turning point (using the techniques he mentioned above). this is an exact way of calculating what dimensions for ur polygon (a square in the aforementioned post) is needed for a maximum area.
hope that helps.
wow calculus @ gcse? the only gcse students who'd know any calculus are those in amazing private schools, in which case he wouldn't need help. so better to keep it simple!