The diameter of a circle is 2.486 m. Calculate the area with due regar – InterviewSolution

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1.	The diameter of a circle is 2.486 m. Calculate the area with due regard to significant figures.A. `4.85 m^3`B. `4.85454 m^3`C. `4.854 m^3`D. `4.8545 m^3`
Answer» Correct Answer - (c ) Here, `D = 2.486 m, pi = 3.142` As Area `=(pi D^2)/(4) = (3.142xx(2.486)^2)/(4)` `=(3.142xx6.180196)/(4) = (19.418175832)/(4)` `=4.85454m^3` Since, the diameter has been expressed in four significant figures, final result of area should also be expressed in four significant figures. `A = 4.854 m^3`

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