Question

the area of 4 walls of a room is 120m².the length of the room is twice its breath if the height of room is 4m².what is area of room?​

Answer 1

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=2b²

=2×5²

=50m²

hope it helps

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=2b²

=2×5²

=2×25

=50m