Question
If the side of square and its area is in the ratio of
1:9 then find its perimeter?Solution
Let the side of square = a cm. According to the question a:a2 = 1:9 ………….(1) ⇒ a = 9 cm Side = 9 cm Perimeter of square = 4 x side of square Perimeter of square = 4 x 9 = 36 cm
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