Question

what is the circumference of a circle of diameter 10 cm,(take

Answer 1

diameter = 10cm

radius =diameter/2

so radius = 10/2=5cm

circumference=2 x pi x r
= 2 x 22/7 x 5
=31.4cm

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Answer 2

Answer:

Circumference of the circle (C)

Circumference of the circle (C)= 10π cm

Or

= $\frac{220}{7}cm$

Explanation:

Given diameter of a circle (d)= 10cm

/* We know that,

$\boxed {Circumference\: of\: a\: circle \: (C) = \pi \times d }$

*/

Now ,

Circumference of the circle (C)

= π×10cm

= 10π cm

Or

= $10\times \frac{22}{7}$ /* π = 22/7 */

= $\frac{220}{7}cm$

Therefore,

Circumference of the circle (C)

= 10π cm

Or

= $\frac{220}{7}cm$

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