द पेरीमीटर ऑफ ए रैक्टेंगुलर फील्ड इज 240 मीटर इज द लेंथ ऑफ 9 मीटर एंड एरिया
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Step-by-step explanation:
perimeter of reactangle = 2( l + b )
240m = 2( 9+ b)
240/2 = ( 9+ b)
120 = 9+b
120 - 9 = b
111 = b, b= 111 m
area of rectangle = l X b
= 9 X 111
= 999m2
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