The height of rectangular room is 8m and it's perimeter of the floor is 20m .Find it's area of four walls
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Answer:
160m^2
Step-by-step explanation:
Area of four walls = 2 ( l+b ) * h
Since 2 (l+b) is 20 m (perimeter)
Therefore area of 4 walls = 20*8
=160m^2
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