Question
Perimeter of a square is equal to perimeter of a
rectangle, if area of square is 729 sq.cm and length of rectangle is three times that of breath. Find the area of rectangle.Solution
a² = 729 cm. sq. a = 27 cm According to question, => 4 × 27 = 3 (2b + b) => 36 = 3b => b = 12 cm So, l = 12 x 3 = 36 cm Area of rectangle = (36 × 12) = 432 cm. sq.
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