Question 3 - Figure it out - Page 149 - Chapter 6 Class 6 - Perimeter and Area (Ganita Prakash)

Transcript

Question 3 The floor of a room is 5 m long and 4 m wide. A square carpet whose sides are 3 m in length is laid on the floor. Find the area that is not carpeted.Now, Area of floor that is not carpeted = Area of rectangular floor − Area of square carpet Area of Rectangular Floor Length of floor = l = 5 m Breadth of floor = b = 4 m Area of floor = l × b = 5 × 4 = 20 m2 Area of Square carpet Side of carpet = a = 3m Area of carpet = a × a = 3 × 3 = 9 m2 Now, Area of floor that is not carpeted = Area of rectangular carpeted − Area of square carpeted = 20 − 9 = 11 m2 ∴ 11 m2 of floor is not carpeted Now, Area of floor that is not carpeted = Area of rectangular carpeted − Area of square carpeted = 20 − 9 = 11 m2 ∴ 11 m2 of floor is not carpeted