Question

the perimeter of the floor of a room is 40 m and its height is 3.5 m find the area of the four walls of the room also find the cost of repairing the four was at 35 per metre square​

Answer 1

Answer:

4900

Step-by-step explanation:

Explanation: here, perimeter of the floor 2 ( l+b ) = 40m. and height = 3.5m. therefore area of four walls of the room = 2 ( l + b ) h = 40 × 3.5 = 140 m ^2

Answer 2

Step-by-step explanation:

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