Rectangle 4077

We cut the largest possible circle from a paper rectangle with 25 cm and 15 cm sides. How many % of the area of the rectangle is the area of the circle?

Correct answer:

p =  47.1239 %

Step-by-step explanation:

a=25 b=15 r=min(a,b)/2=min(25,15)/2=215=7.5 S1=a b=25 15=375 S2=π r2=3.1416 7.52176.7146 p=100 S2/S1=100 176.7146/375=47.1239%

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