Find the total area of the four walls of a room whose dimensions are 6m by 4.5 m by 3 m.

Dear Student,

Please find below the solution to the asked query:

Given : Dimension of room  = 6 m $\times$ 4.5 m $\times$ 3 m

So,

Length of room  = 6 m  ,  Width of room  =  4.5 m and Height of room =  3 m 

So,

Area of four walls of room  =  2 ( Length $\times$ Height + Width $\times$ Height ) , Then

Area of four walls of room  =  2 ( 6 $\times$3 + 4.5 $\times$ 3 ) =  2 ( 18 + 13.5 ) = 2 $\times$ 31.5 = 63 m²            ( Ans )


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