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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
16 Nov 2021

Given information

Given :- The frame of a kite is to be made from six pieces of wood. The four exterior pieces have been cut with lengths indicated in the figure

To find :- To maximize the area of kite , how long should the diagonal pieces be ?

Step-by-step explanation

Step 1.

If x be the half the diagonal of kite, Then

Recall that,

From the figure,

Area of right angled triangle=  

         

Differentiate both sides ,

   

Solve A'(x)=0 and simplify,

 

Evaluate the A(x) at the critical point and end point

At x=0, 

   

At x=a, 

 

At  ,

 

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