find the perimeter of a Trapezium is 104 M its non parallel sides are 18 M and 22 metre and its altitude is 16 find the area of trapezium
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perimeter=a+b+c+d
104 =a+b+18+22
104=a+b+ 40
104-40=a+b
a+b=64m
area=1/2*64*16
=64*8
=512m square
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