Question

9. The area of four walls of a room is 120 m². If the length of the room is twice its brea
the height is 4 m, find the area of the floor.​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

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=2b

2

=2×5

2

=50m

2