Floor covering

We used 30 m2 of floor covering for the floor in the 12 m long corridor. How many m of perimeter rail do we need if we put it on all sides?

Final Answer:

x =  29 m

Step-by-step explanation:

a=12 m S=30 m2  S = ab  b=S/a=30/12=25=2.5 m  x=2 (a+b)=2 (12+2.5)=29 m



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