Rectangular 7072

The rectangular pool has dimensions of 25 m and 12.5 m. Around it is a paved area 3m wide. What is the area of a sidewalk?

Correct answer:

S =  261 m2

Step-by-step explanation:

a=25 m b=12.5 m  x=3 m  S1=(a+2 x) (b+2 x)=(25+2 3) (12.5+2 3)=21147=573.5 m2 S2=a b=25 12.5=2625=312.5 m2  S=S1S2=573.5312.5=261 m2



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