# Ex 10.3, 7 - Chapter 10 Class 6 Mensuration

Last updated at Nov. 15, 2018 by Teachoo

Last updated at Nov. 15, 2018 by Teachoo

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.

Finding Area by Changing units

Chapter 10 Class 6 Mensuration

Concept wise

- Perimeter
- Perimeter of Rectangle
- Perimeter of Square
- Perimeter of Triangle
- Perimeter of Pentagon and Hexagon
- Area - Definition
- Finding area by counting squares
- Area of Square
- Area of Rectangle
- Area by splitting into rectangles
- Finding Area by Changing units
- Area questions with both rectangles and squares

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.