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Find the area of four walls of a room having length 12.5 m, breadth 9 m and height 7 m. |
$289 m^2$ $300 m^2$ $307 m^2$ $301 m^2$ |
$301 m^2$ |
The area of four walls = 2(length + breadth) × height = 2 ( 12.5 + 9) × 7 = 2 ( 21.5 × 7 ) = 301 m² |
