Question

If the length of a diameter of a circle is7 cm,What is the approximate length of its circumference ​

Answer 1

Given::

⟹ Diameter of circle = 7cm

⟹ Radius of circle = 7/2 cm

To find::

⟹ Circumference of Circle

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$⟹2πr = 2 × \frac{22}{7} \times \frac{7}{2}$

$⟹2 \times 11$

$⟹ 22cm$

So circumference of circle = 22cm

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Additional Information ::⏬

⟹ Area of Circle = πr² where r is radius

⟹ Circumference of circle is also perimeter of circle