CUET Preparation Today
The area of the four walls in a room is 120 m2. The length is twice the breadth. If the height of the room is 4 m, find the area of the floor. |
50m2 60m2 70m2 80m2 |
50m2 |
l=2b h=4m Area fof four walls A=2(l+b)h 120=2×4(2b+b) b=5m Area of floor=lb =2b.b=2b2 =2×52=50m2 |
