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https://math.answers.com/math-and-arithmetic/Find_the_area_of_a_circle_that_has_a_diameter_of_4.2cm

Find the area of a circle that has a diameter of 4.2cm? - Answers

the formula for the area of a circle is A = pi * r^2 also, diameter = 2 * radius therefore, the radius must equal 2.1 therefore, A = 4.41*pi you can leave it in that form, but if you wanna evaluate and find a numerical value by using 3.14 instead of pi, you will get 13.8474



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Find the area of a circle that has a diameter of 4.2cm? - Answers

https://math.answers.com/math-and-arithmetic/Find_the_area_of_a_circle_that_has_a_diameter_of_4.2cm

the formula for the area of a circle is A = pi * r^2 also, diameter = 2 * radius therefore, the radius must equal 2.1 therefore, A = 4.41*pi you can leave it in that form, but if you wanna evaluate and find a numerical value by using 3.14 instead of pi, you will get 13.8474



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https://math.answers.com/math-and-arithmetic/Find_the_area_of_a_circle_that_has_a_diameter_of_4.2cm

Find the area of a circle that has a diameter of 4.2cm? - Answers

the formula for the area of a circle is A = pi * r^2 also, diameter = 2 * radius therefore, the radius must equal 2.1 therefore, A = 4.41*pi you can leave it in that form, but if you wanna evaluate and find a numerical value by using 3.14 instead of pi, you will get 13.8474

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      the formula for the area of a circle is A = pi * r^2 also, diameter = 2 * radius therefore, the radius must equal 2.1 therefore, A = 4.41*pi you can leave it in that form, but if you wanna evaluate and find a numerical value by using 3.14 instead of pi, you will get 13.8474

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