Question

find the circumference of the circle whose radius is 6.3 CM ​

Answer 1

Circumference of circle is 2πr

Given radius(r)=6.3cm

circumference=2×3.14×6.3

[Here π=3.14 or 22/7]

circumference=39.564cm

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Answer 2

Answer:

Radius (R) = 6.3 cm

Circumference

$= 2\pi r$

$= (2 \times \frac{22}{7} \times 6.3) \: cm$

$=( 2 \times 22 \times 0.9) \: cm$

$= 39.6 \: cm$