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Question
If A denotes area of a rectangle, l represents its length and b represents its breadth, find:
l, if A = 48 cm² and b = 6 cm
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Solution
l, if A = 48 cm² and b = 6 cm
l = `"A"/"b"` `[∵ "A" = "l" × "b" ⇒ "l" = "A"/"b"]`
`=> "l" = (48 "cm"^2)/(6"cm") = 8 "cm"`
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