what is the biggest possible area with a perimeter of 30 cm ?

total peremiter:30units

no slanted lines
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1 Answer

serkel hav biggest rasheo av area tu rim-length

rim leng=30=2 pi*radius

radius=15/pi=15/3.14159265=4.7746483

area=pi*radius*radius

r^2=22.797266

area=71.619725
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