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Sunita
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Make 3 arrays for 36.
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X=21 x+35=56
5; 60
Since BC || DE and BE || CD with B perpendicular to CD , BCDE is a rectangle => opp sides are equal BE=CD => x+y=5.....(1) DE=BC => x-y Since perimeter of ABCDE is 21 => AB+BC+CD+DE+EA=21 3+x-y+x+y+x-y+3=21 6+3x-y = 21 3x-y = 15 x-y = 5.....(2) Adding (1)
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