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Step-by-step explanation:
area =44+32=76cm²
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Answer:
1.perimeter of the square (4×a)=40cm
a =40/4=10cm
Area of the square =a^2
=10cm×10cm
=100cm^2
given
Area of the square =2(l+b)
100 =2×20+2b
100 =40+2b
60 =2b
b=60/2=30
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