Optimizing Area with Perimeter Constraints

In summary, the problem involves finding the dimensions of an equilateral triangle and a square with a total perimeter of 10 that will result in the minimum total area. The primary equation is A=1/2bh+s^2 and the secondary equation is P=3b+4s. To solve the problem, h can be expressed in terms of b since they are directly proportional in an equilateral triangle. This can be done using trigonometry or Pythagorean theorem.
  • #1
physicsman2
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Homework Statement


the sum of the perimeters of an equilateral triangle and a square is 10. Find the dimensions of the triangle and the square that produce a minimum total area.

Homework Equations





The Attempt at a Solution


my problem is finding the primary and secondary equations.
is A=1/2bh+s^2 the primary equation and P=3b+4s the secondary equation
 
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  • #2
Seems ok so far. Now you want to express h in terms of b as well, right? b and h aren't independent.
 
  • #3
how could i put h in terms of b
first i put b in terms of s and got (10-4s)/3 then put that into the area equation
 
  • #4
You can put h in terms of b because it's an equilateral triangle. The height is directly proportional to the base. Use trig or pythagoras.
 
  • #5
thank you very much
 

FAQ: Optimizing Area with Perimeter Constraints

What is an optimization problem?

An optimization problem is a mathematical problem that involves finding the best possible solution among all feasible solutions. It is characterized by a set of variables, an objective function, and a set of constraints.

What are some common methods used to solve optimization problems?

Some common methods used to solve optimization problems include linear programming, dynamic programming, gradient descent, and genetic algorithms.

How do you determine the optimal solution in an optimization problem?

The optimal solution in an optimization problem is determined by finding the set of values for the variables that maximizes or minimizes the objective function, while satisfying all of the constraints.

Can optimization problems be applied to real-world situations?

Yes, optimization problems are commonly used in real-world situations such as resource allocation, financial planning, and logistics management.

What are some challenges associated with solving optimization problems?

Some challenges associated with solving optimization problems include dealing with complex and large-scale problems, selecting appropriate algorithms, and ensuring that the solution is feasible and practical in real-world scenarios.

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