Question

15. Calculate the areas of four walls of a room of length 4m, breadth 3.5m and height 3m.
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Answer 1

Answer:

Step-by-step explanation:

Answer 2

The area of the wall is 45 $m^{2}$

Step-by-step explanation:

According to the rule of rectangle,

   Area= 2×(l+b)×h

           =2×(4+3.5)×3

           =2×7.5×3

           =45 $m^{2}$