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A rectangle has a length say 'l' and breadth say 'b'. The length is increased, and breadth is decreased by 4 units. The perimeter does not change and so does the area of rectangle. Which among below is a relation between length and breadth? (a) b -I = 4 (b) l – b = 4 (c) - l- b = 4 (d) l + b =4 |
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Answer» (a)AREA =LB= (L+4)(B-4)lb=lb-4l+4b-1616=+4(-l+ b)4=b-loption A is CORRECT |
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