Question
Riordan's room is 16 m long and 10 m wide. A carpet measuring 8 m by 4 m is placed in the centre. What is the area of the room not covered by the carpet?
4 m

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Riordan's room is 16 m long and 10 m wide. A carpet measuring 8 m by 4 m is placed in the centre. What is the area of the room not covered by the carpet?