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you can approximate using a graphas you can see, x is half way between 0 and pi/2so x=pi/4the length of rectangle is 2x=2(pi/4)=pi/2, the height is x=pi/4A=(pi/2)(pi/4)=1.2337005501
you can approximate using a graph
as you can see, x is half way between 0 and pi/2
so x=pi/4
the length of rectangle is 2x=2(pi/4)=pi/2, the height is x=pi/4
A=(pi/2)(pi/4)=1.2337005501