A CLASS ROOM IS 11 M LONG, 8M WIDE AND 5M HIGH. FIND THE SUM OF THE AREAS OF ITS FLOOR AND THE FLOOR WALLS(INCLUDING DOORS WINDOWS ETC.
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TOTAL AREA = 88 + 2 ( 11×5 + 8×5 ) = 278 .... i hope it corret....☺☺☺☺☺
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