MathsGee Answers is Zero-Rated (You do not need data to access) on: Telkom | Dimension Data | Rain | MWEB
First time here? Checkout the FAQs!
MathsGee is Zero-Rated (You do not need data to access) on: Telkom |Dimension Data | Rain | MWEB

0 like 0 dislike
A farmer has 40m of fencing.  What is the maximum area he can enclose?
in Mathematics by Diamond (74,100 points) | 208 views

1 Answer

0 like 0 dislike
use perimeter and the area formulas

Perimeter= 2x + 2y = 40,   x+y=20, x=20-y

Area = xy = (20-y)y = 20y-y^2

dA/dy = 20 - 2y, equating to 0, y=10 and x=10

hence largest area=10 x 10= 100m^2
by Diamond (43,614 points)

Related questions

0 like 0 dislike
0 answers

MathsGee provides answers to subject-specific educational questions for improved outcomes.

On MathsGee Answers, you can:

1. Ask questions
2. Answer questions
3. Comment on Answers
4. Vote on Questions and Answers
5. Donate to your favourite users

MathsGee Tools

Math Worksheet Generator

Math Algebra Solver

Trigonometry Simulations

Vectors Simulations

Matrix Arithmetic Simulations

Matrix Transformations Simulations

Quadratic Equations Simulations

Probability & Statistics Simulations

PHET Simulations

Visual Statistics

ZeroEd Search Engine

Other Tools

MathsGee ZOOM | eBook