Find the circumference of circle with radius. 6.4cm.

Given: Radius of the circle 6.5cm.

To do: Find the circumference of the circle.

Solution:

Formula for circumference of a circle is $2 \pi r$. 

So, circumference = $2\times \frac{22}{7} \times r$

Circumference = $44\times \frac{6.4}{7}$

                           =$\frac{281.6}{7}$

Therefore the circumference is approximately 40.228cm.

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Updated on: 10-Oct-2022

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