Question

the diameter of a circle is 21 cm. find its circumference.​

Answer 1

Answer:

66 cm

Step-by-step explanation:

Circumference of circle = πd

= 22/7 × 21

= 22×3

= 66 cm

Answer 2

Hey !!! ^_^

 

Here is your answer

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The diameter of a circle is 21,

Radius = 21/2

As we know that ,

The formula to find circumference = 2πr

$2*\frac{22}{7} *\frac{21}{2}$

$\frac{22}{7} *21$

$22*3$

$66 cm$

The circumference of the circle is 66 cm.

Hope it helps you!(●'◡'●)