Two discs have diameters of 14 cm and 28 cm. What is the difference in – InterviewSolution

1.	Two discs have diameters of 14 cm and 28 cm. What is the difference in theirareas?9.
Answer» A=PI(r2-r1)^2 =22/7 (14-7)^2 =22/7×7^2 r=d/2 = 28/2=14cm r=d/2 = 14/2=7cm =22/7×49 =22×7 =154cm^2 Ans)The difference between the areas of two circles is 154cm^2.

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