a carpet is placed in a room leaving a border of 1m wide all around the room if the room is 14m long and 10 m wide find the area uncovered by the carpet.
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Step-by-step explanation:
Length of rectangle (room) = 14 m
Breadth of rectangle (room) = 10m
Area of room = l*b = 14*10 = 140m
Then it is given that 1m of border of the room is left uncovered by carpet
Length of carpet = 14-1 = 13 m
Breadth of carpet = 10-1 = 9m
Area of carpet = l*b = 13*9 = 117m
Therefore area uncovered by carpet = Area of room - Area of carpet = 140m - 117m = 23 m
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