Thank y
breadth =44
If the sides are bent by x on either side
then new breadth b' becomes b – 2x
= 44 -2x
and Cross sectional area A (x) = x ( 44 -2x)
A (x)= 44x -2x^2
(b)For maximunm A'(x) =o
44 -4x = 0
x =11
c. maximum area = 11 (44 -22) = 242 sq inches
ou for the opportunity to help you with your question!

breadth =44

If the sides are bent by x on either side

then new breadth b' becomes b – 2x

= 44 -2x

and Cross sectional area A (x) = x ( 44 -2x)

A (x)= 44x -2x^2

(b)For maximunm A'(x) =o

44 -4x = 0

x =11

c. maximum area = 11 (44 -22) = 242 sq inches

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