Find the inner surface area of all walls of a rectangular room with le – McqOptions

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1.	Find the inner surface area of all walls of a rectangular room with length 7 m breadth 5 m and height 3.5 m -
A.	$$84 m^2 $$
B.	$$168 m^2 $$
C.	$$126 m^2 $$
D.	$$42 m^2 $$
Answer» B. $$168 m^2 $$

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