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Square Area=S²
81=S²
S=9cm
Perimeter of square =4*S
=4*9
=36cm
Now circumference =Perimeter of square
C=36cm
And semi circle=36/2=18cm
Semi circle formula =Pie*r
18=22/7*r
18*7/22=r
5.72=r
A=pie r²
=22/7*5.72*5.72
=102.82cm²
81=S²
S=9cm
Perimeter of square =4*S
=4*9
=36cm
Now circumference =Perimeter of square
C=36cm
And semi circle=36/2=18cm
Semi circle formula =Pie*r
18=22/7*r
18*7/22=r
5.72=r
A=pie r²
=22/7*5.72*5.72
=102.82cm²
Answered by
2
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