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  1. Chapter 10 Class 6 Mensuration
  2. Serial order wise

Transcript

Ex 10.3, 7 A room is 4 m long and 3 m 50 cm wide. How many square metres of carpet is needed to cover the floor of the room? Length = l = 4 m Breadth = b = 3 m 50 cm = 3 m + 50 cm = 3 m + 50 × 1/100 m = 3 m + 5/10 m = 3m + 0.5m = 3.5 m ("1cm = " 1/100 " m" ) Area = l × b = 4 × 3.5 = 4 × 35/10 = 2 × 35/5 = 2 × 7 = 14 m2 ∴ 14 m2 carpet is needed to cover the floor of the room.

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.