Question

Circumference of circle whose diameter is 16 cm

Answer 1

Answer:

50.28cm

Step-by-step explanation:

diameter =16cm

so, radii =16/2=8cm

so, circumference =2πr=2*22/7*8=50.28cm(approx.)

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Answer 2

The circumference of the circle whose diameter is 16 cm is 50.28 cm.

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Let's understand a few concepts:

To calculate the circumference of a circle we will use the following formula:

$\boxed{\bold{Circumference\:of\:a\:circle = 2\pi r}}$

To calculate the diameter of a circle we will use the following formula:

$\boxed{\bold{Diameter = 2 \times Radius}}$

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Let's solve the given problem:

The diameter of the circle (d) = 16 cm

So, the radius of the circle (r) = $\frac{d}{2} = \frac{16}{2} = 8\:cm$

Therefore, by using the above formula of circumference, we get

The circumference of the given circle is,

= $2\pi r$

= $2\times \frac{22}{7} \times 8$

= $\bold{50.28\:cm}$

Thus, the circumference of the circle whose diameter is 16 cm is 50.28 cm.

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