Rectangular 4959

In the workshop, they cut 50 circles with a diameter of 9 cm from a rectangular sheet with dimensions of 50 cm and 100 cm. What percentage of the sheet was a waste?

Correct answer:

p =  36.3827 %

Step-by-step explanation:

a=50 cm b=100 cm S1=a b=50 100=5000 cm2 D=9 cm r=D/2=9/2=29=4.5 cm S2=50π r2=50 3.1416 4.523180.8626 cm2 p=100 (S1S2)/S1=100 (50003180.8626)/5000=36.3827%



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