Question 4 - Figure it out - Page 149 - Chapter 6 Class 6 - Perimeter and Area (Ganita Prakash)

Transcript

Question 4 Four flower beds having sides 2 m long and 1 m wide are dug at the four corners of a garden that is 15 m long and 12 m wide. How much area is now available for laying down a lawn?Remaining area of land = Area of rectangular land − Area of four rectangle flower beds = Area of rectangular land − 4 × Area of rectangle flower beds Area of rectangular land Length of land = l = 15 m Breadth of land = b = 12 m Area of land = l × b = 15 × 12 = 180 m2 Area of rectangle flower bed Length of flower bed = l = 2 m Breadth of flower bed = b = 1 m Area of flower bed = l × b = 2 × 1 = 2 m2 Now, Remaining area of land = Area of rectangular land − 4 × Area of rectangle flower beds = 180 − 4 × 2 = 180 − 8 = 172 m2 ∴ 172 m2 of land remaining to lay down a lawn