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12-08-2016
Mathematics

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What is the approximate uncertainty in the area of a circle of radius 3.1×104cm? Express your answer using one significant figure. ΔA =

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13-08-2016

The area of a circle is expressed as:

Area = πr²
where r is the radius of the circle. This equation is used to calculate the area of the circle above. Calculation is as follows:

A = π(3.1 x 10^4 cm)² = 3.0 x 10^9 cm²

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