Problema Solution

if the radius of a certain circle is tripled, with 8.2 units then added; the result is the Circumference of the circle. Find the radius of the circle.

Answer provided by our tutors

Let R represent the radius of the circle


C = 2*R*pi is the circumference of the circle


3R + 8.2 = C


3R + 8.2 = 2*R*pi


pi = 3.14


3R + 8.2 = 2*R*3.14

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R = 2.5 units


The radius of the circle is 2.5 units.