A rectangular 4

A rectangular garden has a length of 57 m and a width of 42 m. Calculate of how many m2 will decrease the area of a garden, if the ornamental fence with a width of 60 cm will be planted inside its perimeter.

Correct answer:

S =  117.36 m2

Step-by-step explanation:

a=57 m b=42 m  c=60 cm m=60/100  m=0.6 m  S1=a b=57 42=2394 m2 S2=(a2 c) (b2 c)=(572 0.6) (422 0.6)=5691625=2276.64 m2  S=S1S2=23942276.64=117.36 m2

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