Rectangular 18333

The rectangular pool has dimensions of 10.5m and 8m. There is a 1m wide trail around it. How many m2 of tiles are needed to pave the sidewalk?

Correct answer:

S =  41 m2

Step-by-step explanation:

a=10.5 m b=8 m c=1 m  S1=a b=10.5 8=84 m2 S2=(a+2 c) (b+2 c)=(10.5+2 1) (8+2 1)=125 m2  S=S2S1=12584=41 m2

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