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Question
If P denotes perimeter of a rectangle, l denotes its length and b denotes its breadth, find:
b, if P = 3.2m and l = 100 cm
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Solution
b, if P = 3.2m and l = 100 cm
`[therefore 100 "cm" = 100/100 "m" = 1 "m"]`
Breadth, (b) = `"P"/2 - "l"`
`= 3.2/2 "m" - "1m"`
= 1.6 m - 1 m = 0.6
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