Non-woven 7322

A square sandpit should have a side length of 1.6 m. How long do you need a wooden board to enclose the sandpit? Under the sandbox, a non-woven fabric will extend by 0.2 m on each side. How much will we need?

Correct answer:

x =  1.8 m
S =  4 m2

Step-by-step explanation:

a=1.6 m a1=0.2 m x=a+a1=1.6+0.2=1.8 m
S=(a+2 a1)2=(1.6+2 0.2)2=4 m2

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