if the perimeter of a rectangular wedding hall is 200 metre what is the area of its four walls if the height of the hall is 12 meter
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perimeter of rectangle=200
2(l+b)=200
l+b=200/2
l+b=100
Height of the hall=12 metre
length=12 meter
l+b=100
12+b=100
b=100-12
b=88 meter
area of one wall =lb
=12(88)
=1056 sq.meter
Area of four wall=1056(4)
=4224 sq.meter
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