Answer to Question #110972 in Geometry for Venkat

Question #110972

Circumference of circle of radius 2.1cm using significant figures

Expert's answer

The circumference of circle is "2\\pi r", where r is the radius of the circle.

Given, r = 2.1cm.

Circumference of circle "= 2 * \\pi * 2.1 = 2 * 3.1416* 2.1= 13.1947"

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