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9. From a rectangular metal sheet of size 20 cm by 30 cm, a circular sheet as big as possible is cut. Find the area of the remaining sheetL​

Answer»

-STEP EXPLANATION:DIAMETER of circle can not be more than 20cmSo r = 10area of circle = πr^2=22/7*10*10=2200/7area of rectangle = lb=20*30=600remaining sheet = 600-2200/7=4200-2200/7=2000/7 cm^2



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