Question
If the perimeter of rectangle is 48 cm and its length is
4 cm more than breadth then find its area?Solution
According to the question Let the length and breadth of rectangle are x cm and (x – 4) cm respectively. Perimeter of rectangle = 2 x (Length + Breadth) ⇒ 2 (x + x – 4) = 48 ⇒ x = 14 Length = x = 14 cm Breadth = x – 4 = 10 cm Area of rectangle = Length x Breadth Area of rectangle = 14 x 10 = 140 cm²
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