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Example 15 - The area of a rectangular piece of cardboard is 36 sq cm

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Example 15 The area of a rectangular piece of cardboard is 36 sq cm and its length is 9 cm. What is the width of the cardboard? Length of rectangle = l = 9 cm Breadth of rectangle = b = ? Area of rectangle = l × b 36 sq. cm = 9 cm × b 9 × b = 36 b = 36/9 b = 4 cm ∴ Width of cardboard is 4 cm

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Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.