the area of a rectangular field whose lenghth is twice it's breadth is 2450 m2 find perimeter of field????????plz answer.......
Lucifer97:
area = 2450 m2 ,let L = 2x ,&B = x ,; L×B = 2450 ,. (x) × (2x) = 2450 ; (2x)2= 2450 , ;x= 35 ; breath = 35 and length= 70 ; perimeter = 2(L+B) = 210
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let length be 2x, breadth be x
area = lb = 2450
⇒ 2x² = 2450
⇒ x² = 1225
⇒ x = 35m
perimeter = 2(l +b) = 2(35 +70) = 2(105) = 210m
area = lb = 2450
⇒ 2x² = 2450
⇒ x² = 1225
⇒ x = 35m
perimeter = 2(l +b) = 2(35 +70) = 2(105) = 210m
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