A room is 6.5m long ,4 m wide and 4.5 m high. Find the area of four walls of this room.
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length=6.5m
breadth=4m
height=4.5m
area of 4 walls = 2h(l+b)
area of 4 walls = 2×4.5(6.5+4)
area of 4 walls = 2×9(10.5)
area of 4 walls = 18×10.5
area of 4 walls = 189 m square
breadth=4m
height=4.5m
area of 4 walls = 2h(l+b)
area of 4 walls = 2×4.5(6.5+4)
area of 4 walls = 2×9(10.5)
area of 4 walls = 18×10.5
area of 4 walls = 189 m square
jatinkumarsharma:
your answer is wrong
why
why u multiplied 9 by 2 again
???
its a formula
that's not the. formula
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