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Q: 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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